Nouveau - Apr 2009 - [Bug 21273] New: Driver can't detect video output and xserver doesn't start

http://bugs.freedesktop.org/show_bug.cgi?id=21273

           Summary: Driver can't detect video output and xserver doesn't
                    start
           Product: xorg
           Version: git
          Platform: PowerPC
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: ronne at list.ru
         QAContact: xorg-team at lists.x.org


Created an attachment (id=24925)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=24925)
xord.conf

I try current git nouveau driver. It doesn't work on my machine.


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--- Comment #1 from Andrey Gusev <ronne at list.ru>  2009-04-18 15:03:06
PST ---
Created an attachment (id=24926)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=24926)
xorg.log


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Andrey Gusev <ronne at list.ru> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #24925|xord.conf                   |xorg.conf
        description|                            |




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--- Comment #2 from Andrey Gusev <ronne at list.ru>  2009-04-18 15:05:00
PST ---
lspci
0000:00:10.0 VGA compatible controller: nVidia Corporation NV17 [GeForce4 MX
420] (rev a3) (prog-if 00 [VGA controller])
        Subsystem: nVidia Corporation Device 0008
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 248 (1250ns min, 250ns max)
        Interrupt: pin A routed to IRQ 48
        Region 0: Memory at 91000000 (32-bit, non-prefetchable) [size=16M]
        Region 1: Memory at 98000000 (32-bit, prefetchable) [size=128M]
        Region 2: Memory at f1000000 (32-bit, prefetchable) [size=512K]
        Expansion ROM at f1080000 [size=128K]
        Capabilities: [60] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [44] AGP version 2.0
                Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA- ITACoh- GART64- HTrans-
64bit- FW+ AGP3- Rate=x1,x2,x4
                Command: RQ=1 ArqSz=0 Cal=0 SBA- AGP- GART64- 64bit- FW-
Rate=<none>
        Kernel driver in use: nvidiafb


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--- Comment #3 from Andrey Gusev <ronne at list.ru>  2009-04-18 15:08:05
PST ---
Created an attachment (id=24927)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=24927)
Xorg.log on nv driver


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--- Comment #4 from Stuart Bennett <sb476 at cam.ac.uk>  2009-04-18
15:31:14 PST ---
1) nvidiafb won't work with nouveau, use "video=ofonly" on your
kernel boot
command
2) there's some failure to find the video outputs, please attach file the
Open
Firmware file NVDA,BMP which is somewhere in /proc/device-tree


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--- Comment #5 from Andrey Gusev <ronne at list.ru>  2009-04-18 15:52:12
PST ---
Created an attachment (id=24929)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=24929)
Open Firmware file NVDA,BMP


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--- Comment #6 from Stuart Bennett <sb476 at cam.ac.uk>  2009-04-18
16:16:46 PST ---
(In reply to comment #5)
> Created an attachment (id=24929)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=24929)
[details]
> Open Firmware file NVDA,BMP
Thanks.  Sadly the information we need is missing from that.  Can you try
dumping the whole PCI rom as well, something like:
cd /sys/bus/pci/devices/0000:00:10.0
echo 1 > rom
cat rom > romfile
echo 0 > rom


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--- Comment #7 from Andrey Gusev <ronne at list.ru>  2009-04-19 01:21:52
PST ---
I tried do so, but it doesn't work. I got something like:
[  639.794261] pci 0000:00:10.0: Invalid ROM contents
cat: rom: Input/output error


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--- Comment #8 from Danny <moondrake at gmail.com>  2009-04-21 04:52:21
PST ---
Created an attachment (id=24992)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=24992)
rom file

I have no clue why the rom is corrupted. I'm going out on a limp here, and
hope
that this machine is included in a firmware update for geforce cards that apple
released a couple of years ago. I extracted the files from that update and they
are attached.

I hope Stuart can see whether or not these roms are actually suited for this
card. Of course, all of this does not really help if nouveau actually needs to
access the rom to do something meaningful with it. 


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--- Comment #9 from Danny <moondrake at gmail.com>  2009-04-21 04:53:09
PST ---
Created an attachment (id=24993)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=24993)
second rom file


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--- Comment #10 from Stuart Bennett <sb476 at cam.ac.uk>  2009-04-21
06:56:19 PST ---
(In reply to comment #8)
> Created an attachment (id=24992)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=24992)
[details]
> rom file
> 
> I have no clue why the rom is corrupted. I'm going out on a limp here,
and hope
> that this machine is included in a firmware update for geforce cards that
apple
> released a couple of years ago. I extracted the files from that update and
they
> are attached.
Thanks for looking at this.  Rather than corruption, I suspect the problem is
that for early models such as this they simply didn't bother putting the
necessary table in the OF NVDA,BMP.

The NVIDIA1100-A74.rom is for an nv17, but is an older version than the
existing one, and also misses the appropriate table :(  However, from looking
at the rest of the rom it doesn't look like they've hidden the DCB in
some
other part of OF

Andrey: could you attach a compressed tar file of /proc/device-tree (or if
that's too big, just the nvidia pci-card subdirectory containing NVDA,BMP)
so
we can see if OF gives any hints, or whether we just have to make this up.


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--- Comment #11 from Andrey Gusev <ronne at list.ru>  2009-04-21 07:46:05
PST ---
I'll collect information in /proc/device-tree at night. Could I update rom
without MACOS? I don't have installed one.


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--- Comment #12 from Stuart Bennett <sb476 at cam.ac.uk>  2009-04-21
07:50:42 PST ---
(In reply to comment #11)
> I'll collect information in /proc/device-tree at night. Could I update
rom
> without MACOS? I don't have installed one.
Thanks.  Don't worry about a rom update at the moment; it would be good to
fix
this without needing an update, and the rom update here wouldn't fix
anything
anyway.


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--- Comment #13 from Andrey Gusev <ronne at list.ru>  2009-04-21 10:58:36
PST ---
Created an attachment (id=25003)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=25003)
/proc/device-tree

Archive of /proc/device-tree.


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--- Comment #14 from Stuart Bennett <sb476 at cam.ac.uk>  2009-04-21
11:27:42 PST ---
What output connectors does this computer have (VGA, DVI, TV, etc)?  Am I
correct to assume it's some sort of PowerMac G4?


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--- Comment #15 from Andrey Gusev <ronne at list.ru>  2009-04-21 11:53:49
PST ---
Created an attachment (id=25009)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=25009)
Back side of videocard

Yes, it is mac G4. Threre is a DVI and the some Apple's stuff. 


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--- Comment #16 from Stuart Bennett <sb476 at cam.ac.uk>  2009-04-30
13:28:39 PST ---
Hi, could you dump some registers for me?  You need to:

git clone git://anongit.freedesktop.org/~stuart/radeontool; cd radeontool; make

then, for all possible options of outputs you can test (DVI (DVI-D) and VGA
over DVI (DVI-A) would be good), do a fresh boot of linux (using video=ofonly
as mentioned in comment 4), and run "./radeontool unlock; ./radeontool
owner 0;
./radeontool regs > regs-OUTPUT_TYPE.log"

once you've got the dump files, attach them to this bug report.


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--- Comment #17 from Andrey Gusev <ronne at list.ru>  2009-05-11 04:52:53
PST ---
Created an attachment (id=25727)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=25727)
Dump of registers with monitor on dvi output through dvi2vga adapter

I made a dump for monitor on dvi output. Monitor is connected through dvi2vga
adapter (monitor has only vga input). Currently, I don't have another one, I
am
going to buy one, so I will add more results later.


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--- Comment #18 from Stuart Bennett <sb476 at cam.ac.uk>  2009-05-27
09:11:50 PST ---
(In reply to comment #17)
> Created an attachment (id=25727)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=25727)
[details]
> Dump of registers with monitor on dvi output through dvi2vga adapter
Using the same monitor/connector, can you also attach the results of running
"nvclock -i -d", using the nvclock program available from
http://www.linuxhardware.org/nvclock/ ?


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--- Comment #19 from Andrey Gusev <ronne at list.ru>  2009-05-29 12:19:40
PST ---
Created an attachment (id=26293)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=26293)
Result of nvclock -d -i


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--- Comment #20 from Stuart Bennett <sb476 at cam.ac.uk>  2009-05-30
16:31:26 PST ---
Created an attachment (id=26312)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=26312)
test patch A

Please try this patch, *and* the following one, and report if either (or both)
work.  You will have to remove this patch ("git reset --hard origin")
to apply
the second one.


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--- Comment #21 from Stuart Bennett <sb476 at cam.ac.uk>  2009-05-30
16:32:27 PST ---
Created an attachment (id=26313)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=26313)
patch B (2nd of two test patches)


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--- Comment #22 from Andrey Gusev <ronne at list.ru>  2009-06-02 15:08:16
PST ---
I checked both patches. Both are working, but with first patch, there is a
problem with font. See: http://img20.imageshack.us/img20/7747/bugfong.png
As I understand,I need a Gallium3D branch for getting dri.
I attach logs. 


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--- Comment #23 from Andrey Gusev <ronne at list.ru>  2009-06-02 15:09:56
PST ---
Created an attachment (id=26360)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=26360)
Log of xorg with patch A


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--- Comment #24 from Andrey Gusev <ronne at list.ru>  2009-06-02 15:10:51
PST ---
Created an attachment (id=26361)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=26361)
xorg log with patch B


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--- Comment #25 from Andrey Gusev <ronne at list.ru>  2009-06-02 15:16:06
PST ---
Created an attachment (id=26362)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=26362)
drm messages from dmesg with patch A


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--- Comment #26 from Andrey Gusev <ronne at list.ru>  2009-06-02 15:16:46
PST ---
Created an attachment (id=26363)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=26363)
drm messages from dmesg with patch B


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--- Comment #27 from Stuart Bennett <sb476 at cam.ac.uk>  2009-06-04
17:35:34 PST ---
(In reply to comment #22)
> I checked both patches. Both are working, but with first patch, there is a
> problem with font. See: http://img20.imageshack.us/img20/7747/bugfong.png
Ok, working is good, but I'm surprised that there's a font problem with
only
one of the patches.  Is it repeatable -- does the first patch *always* have
broken fonts, and does the second patch *always* have working fonts?

If it is repeatable, can you make a register dump while you are using X with
patch A and another dump from X using patch B (same procedure as in comment
#16)?
> As I understand,I need a Gallium3D branch for getting dri.
You need mesa master branch for 3d, but it's not necessary for 2d, and
it's not
supported.


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--- Comment #28 from Andrey Gusev <ronne at list.ru>  2009-06-05 14:42:51
PST ---
Created an attachment (id=26477)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=26477)
Diff of registers beetween patch A and B.

You are right, bug with font is unstable. I try to reproduce it, but while
there is the difference of registers with patch A and B. I tested patch B first
and my Xserver hung. I found in syslog:
Jun  6 00:55:08 power-debian gdm[3244]: WARNING: gdm_slave_xioerror_handler:
Fatal error X - Restart :0
It tried to restart, but all system hung. I couldn't switch to console, but
magic keys worked. 
2D is enough for me, but It would be good have AGP acceleration.


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--- Comment #29 from Andrey Gusev <ronne at list.ru>  2009-06-05 14:58:04
PST ---
Created an attachment (id=26478)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=26478)
Log of register with patchA and corrupted fonts

I reproduced it, after some restarting session, fonts became bad. Logout
repaired fonts.


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--- Comment #30 from Stuart Bennett <sb476 at cam.ac.uk>  2009-06-05
15:25:17 PST ---
(In reply to comment #29)
> Created an attachment (id=26478)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=26478)
[details]
> Log of register with patchA and corrupted fonts
> 
> I reproduced it, after some restarting session, fonts became bad. Logout
> repaired fonts.
So are you saying that sometimes the fonts are ok when using patch A?

Also, have you ever got corrupted fonts with patch B?


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--- Comment #31 from Andrey Gusev <ronne at list.ru>  2009-06-05 23:57:00
PST ---
Created an attachment (id=26485)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=26485)
Dump of registers with patch B when fonts are bad
>So are you saying that sometimes the fonts are ok when using patch A?
Yes, sometimes they are ok. I can say in most cases.
>Also, have you ever got corrupted fonts with patch B?
Yes, I got corrupted fonts with patch B. It was first initialization. I can see
in dmesg:

[  124.681630] pci 0000:00:10.0: Invalid ROM contents
[  128.584775] pci 0000:00:10.0: Invalid ROM contents
[  132.443573] pci 0000:00:10.0: Invalid ROM contents
[  216.017077] [drm] Initialized drm 1.1.0 20060810
[  226.226079] pci 0000:00:10.0: BAR 1: can't reserve mem region
[0x98000000-0x9fffffff]
[  226.234741] [drm] Detected an NV17 generation card (0x017200a5)
[  226.238082] [drm] Initialized nouveau 0.0.12
libdrm-2.4.9-2-ga1e3ab9e55047c08a on minor 0
[  226.246490] [drm] Used old pci detect: framebuffer loaded
[  267.394922] [drm] OF bios successfully copied (2701 bytes)
[  267.395735] [drm] OF bios successfully copied (2701 bytes)
[  267.396385] [drm] OF bios successfully copied (2701 bytes)
[  267.448771] [drm] Allocating FIFO number 0
[  267.449937] [drm] nouveau_fifo_alloc: initialised FIFO 0
[  267.867452] Process Xorg (pid:3561) mapped non-existing PCI legacy memory
for 00000:00
[  267.868387] [drm] Allocating FIFO number 1
[  267.869244] [drm] nouveau_fifo_alloc: initialised FIFO 1
[ 1779.522615] [drm] nouveau_fifo_free: freeing fifo 1
[ 1779.522645] [drm] cleanning a channel with graph in current context
[ 1779.553369] [drm] nouveau_fifo_free: freeing fifo 0
[ 1781.252878] [drm] OF bios successfully copied (2701 bytes)
[ 1781.253641] [drm] OF bios successfully copied (2701 bytes)
[ 1781.254242] [drm] OF bios successfully copied (2701 bytes)
[ 1781.301913] [drm] Allocating FIFO number 0
[ 1781.302997] [drm] nouveau_fifo_alloc: initialised FIFO 0
[ 1781.668603] Process Xorg (pid:5286) mapped non-existing PCI legacy memory
for 00000:00
[ 1781.669483] [drm] Allocating FIFO number 1
[ 1781.670341] [drm] nouveau_fifo_alloc: initialised FIFO 1


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--- Comment #32 from Andrey Gusev <ronne at list.ru>  2009-06-06 10:54:25
PST ---
Really, it is looked like bad fonts only on first initialization. How about
error of reservation memory?


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--- Comment #33 from Stuart Bennett <sb476 at cam.ac.uk>  2009-06-11
13:16:31 PST ---
Ok, I've pushed the dvi-analogue patch in
http://cgit.freedesktop.org/nouveau/xf86-video-nouveau/commit/?id=b7e3306ddc3693699f6f9de7b22913ee22ed31ed
I can't fix the dvi-digital or apple connectors without some register dumps
with those in use.

I'd suggest making a new separate bug for your font problem, and leave this
one
for the remaining connectors.


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--- Comment #34 from Andrey Gusev <ronne at list.ru>  2009-06-14 09:13:41
PST ---
Created an attachment (id=26770)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=26770)
Registers with dvi monitor


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--- Comment #35 from Andrey Gusev <ronne at list.ru>  2009-06-14 09:16:01
PST ---
Created an attachment (id=26771)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=26771)
Try of using dvi output

I tried to use dvi monitor. Driver is initialized, but monitor went to suspend
mode. May be this log will be useful.


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--- Comment #36 from Andrey Gusev <ronne at list.ru>  2009-06-14 09:18:52
PST ---
(In reply to comment #33)
> Ok, I've pushed the dvi-analogue patch in
>
http://cgit.freedesktop.org/nouveau/xf86-video-nouveau/commit/?id=b7e3306ddc3693699f6f9de7b22913ee22ed31ed
> I can't fix the dvi-digital or apple connectors without some register
dumps
> with those in use.
I added attachment of registers with dvi-digital connector. Hope apple don't
need.
> 
> I'd suggest making a new separate bug for your font problem, and leave
this one
> for the remaining connectors.
> 
I think this good idea.


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--- Comment #37 from Martin Decky <martin at decky.cz>  2009-07-07
09:23:34 PST ---
Created an attachment (id=27465)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=27465)
Output of radeontool on GeForce4 440 Go

Output of radeontool on GeForce4 440 Go


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--- Comment #38 from Martin Decky <martin at decky.cz>  2009-07-07
09:24:05 PST ---
Created an attachment (id=27466)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=27466)
Output of nvclock on GeForce4 440 Go

Output of nvclock on GeForce4 440 Go


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--- Comment #39 from Martin Decky <martin at decky.cz>  2009-07-07
09:25:04 PST ---
Created an attachment (id=27467)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=27467)
X log for tweaked Nouveau driver on GeForce4 440 Go

X log for tweaked Nouveau driver on GeForce4 440 Go


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--- Comment #40 from Martin Decky <martin at decky.cz>  2009-07-07
09:26:11 PST ---
Comment to the previous three attachments:

I have a very similar problem with my iMac G4 (Flat Panel model, GeForce4 440
Go). The machine has an integrated flat panel and a mini-VGA external
connector. The BIOS also lacks the DCB table.

With the patch provided here (tweaking it trivially to take the "Working
around
missing output tables" code path in my case) I get correct output on the
external monitor connected via mini-VGA, but the integrated flat panel is not
detected (but it glows with funny green bars).

I'm not an expert on nVidia, thus I was just randomly tweaking the patch
somehow and the "best" I was able to achieve was a correct detection
of both
the flat panel and the external monitor over mini-VGA (see attached X.log), but
the flat panel still just glows with funny color bars. The combination of the
fabricated outputs in this case is as follows:

fabricate_vga_output(dcb, LEGACY_I2C_CRT, 0x1, 0);
fabricate_vga_output(dcb, LEGACY_I2C_PANEL, 0x3, 2);

(Again, please excuse my total ignorance, this is just a random guess.)

I have also attached the output of radeontool and nvclock (with ofonly console,
both outputs are on and show kernel output properly). Thanks for any help with
configuring both outputs.


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--- Comment #41 from Martin Decky <martin at decky.cz> 2010-11-18 09:54:24
PST ---
Created an attachment (id=40392)
 View: https://bugs.freedesktop.org/attachment.cgi?id=40392
 Review: https://bugs.freedesktop.org/review?bug=21273&attachment=40392

A patch for GeForce4 440 Go on iMac G4

This patch is part of a Fedora kernel package created by Ben Skeggs
(http://koji.fedoraproject.org/koji/taskinfo?taskID=2594332) which solves the
issue for my GeForce4 440 Go on iMac G4 (both the integrated flat panel and
external VGA are detected and work flawlessly).

You might try to adopt it for your case.

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--- Comment #42 from Francisco Jerez <currojerez at riseup.net> 2010-11-18
17:24:34 PST ---
(In reply to comment #41)
> Created an attachment (id=40392)
 View: https://bugs.freedesktop.org/attachment.cgi?id=40392
 Review: https://bugs.freedesktop.org/review?bug=21273&attachment=40392
> A patch for GeForce4 440 Go on iMac G4
> 
> This patch is part of a Fedora kernel package created by Ben Skeggs
> (http://koji.fedoraproject.org/koji/taskinfo?taskID=2594332) which solves
the
> issue for my GeForce4 440 Go on iMac G4 (both the integrated flat panel and
> external VGA are detected and work flawlessly).
> 
> You might try to adopt it for your case.
Martin, can you attach the output you get from "lspci -vvnn"?

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--- Comment #43 from Francisco Jerez <currojerez at riseup.net> 2010-11-18
17:35:38 PST ---
Created an attachment (id=40401)
 View: https://bugs.freedesktop.org/attachment.cgi?id=40401
 Review: https://bugs.freedesktop.org/review?bug=21273&attachment=40401

nv17_mac_dcb.patch

(In reply to comment #36)
> (In reply to comment #33)
> > Ok, I've pushed the dvi-analogue patch in
> >
http://cgit.freedesktop.org/nouveau/xf86-video-nouveau/commit/?id=b7e3306ddc3693699f6f9de7b22913ee22ed31ed
> > I can't fix the dvi-digital or apple connectors without some
register dumps
> > with those in use.
> I added attachment of registers with dvi-digital connector. Hope apple
don't
> need.
> > 
> > I'd suggest making a new separate bug for your font problem, and
leave this one
> > for the remaining connectors.
> > 
> I think this good idea.
Andrey, the patch I'm attaching should fix KMS on your card with DVI-D and
DVI-A, can you try it on a recent kernel tree and tell me if it works? If it
does, can you provide the output from "lspci -vvnn" as well?

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--- Comment #44 from Ben Skeggs <skeggsb at gmail.com> 2010-11-19 00:14:33
PST ---
I've pushed Francisco's patch to nouveau git.

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--- Comment #45 from Martin Decky <martin at decky.cz> 2010-11-23 08:57:34
PST ---
Created an attachment (id=40509)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=40509)
output of lspci -vvnn on my iMac G4

(In reply to comment #42)

Hello guys, sorry for my late reply (the machine is not always readily
available) and for forgetting to add myself to the CC list. Anyway, even though
the patch has been already pushed upstream (thanks!) here is my output of
lspci.

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--- Comment #46 from Andrey Gusev <ronne at list.ru> 2010-11-23 12:42:19
PST ---
> Andrey, the patch I'm attaching should fix KMS on your card with DVI-D
and
> DVI-A, can you try it on a recent kernel tree and tell me if it works? If
it
> does, can you provide the output from "lspci -vvnn" as well?
I will test this patch when find free night. I need upgrade xserver for this,
so it takes a lot of time.

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--- Comment #47 from Andrey Gusev <ronne at list.ru> 2010-11-27 15:42:14
PST ---
I tried this patch. It looks like working, but driver still doesn't work for
me.
I got 2.6.37-rc3 kernel, applied patch and built it. nvidia frame buffer driver
was disabled. I installed xorg-server from experimental of Debian and built
libdrm and nouveau driver. After rebooting, monitor suspended. It seems system
worked, but monitor didn't display anything.
I attach logs of kernel, X and lspci.

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--- Comment #48 from Andrey Gusev <ronne at list.ru> 2010-11-27 15:45:36
PST ---
Created an attachment (id=40607)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=40607)
dmesg log of kernel with patch.

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--- Comment #49 from Andrey Gusev <ronne at list.ru> 2010-11-27 15:47:43
PST ---
Created an attachment (id=40608)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=40608)
Xorg.log

According to log weren't files of dri devices.

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--- Comment #50 from Andrey Gusev <ronne at list.ru> 2010-11-27 15:49:52
PST ---
Created an attachment (id=40609)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=40609)
Result of lspci after try of loading driver.

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--- Comment #51 from Francisco Jerez <currojerez at riseup.net> 2010-11-29
04:34:36 PST ---
(In reply to comment #47)
> I tried this patch. It looks like working, but driver still doesn't
work for
> me.
> I got 2.6.37-rc3 kernel, applied patch and built it. nvidia frame buffer
driver
> was disabled. I installed xorg-server from experimental of Debian and built
> libdrm and nouveau driver. After rebooting, monitor suspended. It seems
system
> worked, but monitor didn't display anything.
> I attach logs of kernel, X and lspci.
Apparently you have a handoff issue, try with "video=offb:off" in your
kernel
command line.

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--- Comment #52 from Andrey Gusev <ronne at list.ru> 2010-12-05 13:09:33
PST ---
Created an attachment (id=40814)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=40814)
dmesg wiith parameter video=offb:off

I tried this parameter, but nothing is changed except I didn't see process
of
booting system.

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--- Comment #53 from Andrey Gusev <ronne at list.ru> 2010-12-05 13:11:01
PST ---
Created an attachment (id=40815)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=40815)
Xorg.log with parameter video=offb:off

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Francisco Jerez <currojerez at riseup.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #40401|0                           |1
        is obsolete|                            |

--- Comment #54 from Francisco Jerez <currojerez at riseup.net> 2010-12-06
06:33:14 PST ---
Created an attachment (id=40826)
 View: https://bugs.freedesktop.org/attachment.cgi?id=40826
 Review: https://bugs.freedesktop.org/review?bug=21273&attachment=40826

nv17_mac_dcb_1.patch

(In reply to comment #52)
> Created an attachment (id=40814)
 -->
(https://bugs.freedesktop.org/attachment.cgi?id=40814)
> dmesg wiith parameter video=offb:off
> 
> I tried this parameter, but nothing is changed except I didn't see
process of
> booting system.
Okay, can you revert the previous patch (e.g. "git reset --hard") and
try this
one? (with the "video" option still in place)

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--- Comment #55 from Francisco Jerez <currojerez at riseup.net> 2010-12-06
06:35:34 PST ---
Created an attachment (id=40827)
 View: https://bugs.freedesktop.org/attachment.cgi?id=40827
 Review: https://bugs.freedesktop.org/review?bug=21273&attachment=40827

nv17_mac_dcb_2.patch

(In reply to comment #54)
> Created an attachment (id=40826)
 View: https://bugs.freedesktop.org/attachment.cgi?id=40826
 Review: https://bugs.freedesktop.org/review?bug=21273&attachment=40826
> nv17_mac_dcb_1.patch
> 
> (In reply to comment #52)
> > Created an attachment (id=40814)
 -->
(https://bugs.freedesktop.org/attachment.cgi?id=40814)
> > dmesg wiith parameter video=offb:off
> > 
> > I tried this parameter, but nothing is changed except I didn't see
process of
> > booting system.
> 
> Okay, can you revert the previous patch (e.g. "git reset --hard")
and try this
> one? (with the "video" option still in place)
...or this one if you've no luck with nv17_mac_dcb_1.patch.

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--- Comment #56 from Andrey Gusev <ronne at list.ru> 2010-12-06 23:14:42
PST ---
Created an attachment (id=40857)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=40857)
dmesg wiith first patch parameter video=offb:off

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--- Comment #57 from Andrey Gusev <ronne at list.ru> 2010-12-06 23:22:28
PST ---
Created an attachment (id=40858)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=40858)
dmesg wiith second patch parameter video=offb:off

Both patches doesn't change anything. After booting kernel tried to set
video
mode, but it is failed and monitor suspended. I could make a blind input in
console. (At least with second patch).
Additional, I tried to remove nouveau driver and boot without parameter video.
(xserver uses frame buffer driver). But all is same. As I understand, driver
doesn't take control from kernel.

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--- Comment #58 from Francisco Jerez <currojerez at riseup.net> 2010-12-07
04:28:36 PST ---
(In reply to comment #57)
> Created an attachment (id=40858)
 -->
(https://bugs.freedesktop.org/attachment.cgi?id=40858)
> dmesg wiith second patch parameter video=offb:off
> 
> Both patches doesn't change anything. After booting kernel tried to set
video
> mode, but it is failed and monitor suspended. I could make a blind input in
> console. (At least with second patch).
> Additional, I tried to remove nouveau driver and boot without parameter
video.
> (xserver uses frame buffer driver). But all is same. As I understand,
driver
> doesn't take control from kernel.
This monitor works with offb, right? Can you get a register dump from it?
(while you're in text mode, don't start X) You can use
"video=ofonly
nouveau.modeset=0" to make sure no other framebuffer driver takes over.

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--- Comment #59 from Andrey Gusev <ronne at list.ru> 2010-12-08 12:52:27
PST ---
Created an attachment (id=40932)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=40932)
registers without X booting. Kernel parameters: "video=ofonly
nouveau.modeset=0"

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--- Comment #60 from Andrey Gusev <ronne at list.ru> 2010-12-08 12:55:41
PST ---
I see in dmesg:
[    0.370917] Console: switching to colour frame buffer device 200x75
[    0.399597] fb0: Open Firmware frame buffer device on
/pci at f0000000/NVDA,Parent at 10/NVDA,Display-B at 1
[    0.400377] fb1: Open Firmware frame buffer device on
/pci at f0000000/NVDA,Parent at 10/NVDA,Display-A at 0

Should I disable Open Firmware frame buffer too?

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--- Comment #61 from Andrey Gusev <ronne at list.ru> 2010-12-08 14:29:13
PST ---
Created an attachment (id=40933)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=40933)
Registers for kernel parameters: video=offb:off nouveau.modeset=0

I guess kernel doesn't work with mac console.

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Francisco Jerez <currojerez at riseup.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #40826|0                           |1
        is obsolete|                            |
  Attachment #40827|0                           |1
        is obsolete|                            |

--- Comment #62 from Francisco Jerez <currojerez at riseup.net> 2010-12-09
08:04:24 PST ---
Created an attachment (id=40955)
 View: https://bugs.freedesktop.org/attachment.cgi?id=40955
 Review: https://bugs.freedesktop.org/review?bug=21273&attachment=40955

nv17_mac_dcb_3.patch

(In reply to comment #59)
> Created an attachment (id=40932)
 -->
(https://bugs.freedesktop.org/attachment.cgi?id=40932)
> registers without X booting. Kernel parameters: "video=ofonly
> nouveau.modeset=0"
*Sigh*, your card's actually supposed to use the on-chip TMDS transmitter,
but
it's missing the BIOS scripts required to set it up. The attached patch
hardcodes  some TMDS PLL parameters into the driver. That will hopefully be
enough to get you an image through DVI-D.

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--- Comment #63 from Andrey Gusev <ronne at list.ru> 2010-12-09 14:41:35
PST ---
Created an attachment (id=40968)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=40968)
dmesg with third patch kernel parameters" video=ofonly"

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--- Comment #64 from Andrey Gusev <ronne at list.ru> 2010-12-09 14:45:07
PST ---
Created an attachment (id=40969)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=40969)
dmesg with third patch kernel parameters "video=offb:off"

Unfortunately, it still doesn't work.

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--- Comment #65 from Andrey Gusev <ronne at list.ru> 2010-12-12 14:12:49
PST ---
Created an attachment (id=41046)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=41046)
Difference in register on kernel 2.6.36.2 beetween  OpenFB and NouveauFB

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--- Comment #66 from Andrey Gusev <ronne at list.ru> 2010-12-12 14:14:30
PST ---
Created an attachment (id=41047)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=41047)
Difference in registers on kernel 2.6.37-rc5 with patch beetween  OpenFB and
NouveauFB

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Andrey Gusev <ronne at list.ru> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #41046|0                           |1
        is obsolete|                            |

--- Comment #67 from Andrey Gusev <ronne at list.ru> 2010-12-12 14:17:02
PST ---
Created an attachment (id=41048)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=41048)
Difference in register on kernel 2.6.36.2 beetween  OpenFB and NvidiaFB

I made mistake in previous comment to this diff.

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--- Comment #68 from Andrey Gusev <ronne at list.ru> 2011-06-04 02:57:44
PDT ---
I checked kernel from git. Problem is still actual:
Jun  4 13:44:10 power-debian kernel: [   41.258117] [drm] Initialized drm 1.1.0
20060810
Jun  4 13:44:10 power-debian kernel: [   41.905751] au8830 0001:10:15.0:
enabling device (0004 -> 0007)
Jun  4 13:44:10 power-debian kernel: [   41.905862] Vortex: init....
Jun  4 13:44:10 power-debian kernel: [   42.114836] [drm] nouveau 0000:00:10.0:
Detected an NV10 generation card (0x017200a5)
Jun  4 13:44:10 power-debian kernel: [   42.115084] [drm] nouveau 0000:00:10.0:
OF bios successfully copied (2701 bytes)
Jun  4 13:44:10 power-debian kernel: [   42.115210] [drm] nouveau 0000:00:10.0:
Attempting to load BIOS image from PRAMIN
Jun  4 13:44:10 power-debian kernel: [   42.170951] [drm] nouveau 0000:00:10.0:
... BIOS checksum invalid
Jun  4 13:44:10 power-debian kernel: [   42.171027] [drm] nouveau 0000:00:10.0:
Attempting to load BIOS image from PROM
Jun  4 13:44:10 power-debian kernel: [   42.257320] done.
Jun  4 13:44:10 power-debian kernel: [   42.340091] [drm] nouveau 0000:00:10.0:
... BIOS checksum invalid
Jun  4 13:44:10 power-debian kernel: [   42.340148] [drm] nouveau 0000:00:10.0:
Attempting to load BIOS image from PCIROM
Jun  4 13:44:10 power-debian kernel: [   42.340286] [drm] nouveau 0000:00:10.0:
... BIOS signature not found
Jun  4 13:44:10 power-debian kernel: [   42.340309] [drm] nouveau 0000:00:10.0:
Attempting to load BIOS image from ACPI
Jun  4 13:44:10 power-debian kernel: [   42.340337] [drm] nouveau 0000:00:10.0:
... BIOS signature not found
Jun  4 13:44:10 power-debian kernel: [   42.340360] [drm] nouveau 0000:00:10.0:
Using BIOS image from PRAMIN
Jun  4 13:44:10 power-debian kernel: [   42.387733] [drm] nouveau 0000:00:10.0:
BMP BIOS found
Jun  4 13:44:10 power-debian kernel: [   42.387784] [drm] nouveau 0000:00:10.0:
BMP version 5.21
Jun  4 13:44:10 power-debian kernel: [   42.387808] [drm] nouveau 0000:00:10.0:
Bios version 04.17.00.56
Jun  4 13:44:10 power-debian kernel: [   42.387833] [drm] nouveau 0000:00:10.0:
No output data (DCB) found in BIOS
Jun  4 13:44:10 power-debian kernel: [   42.388438] i2c i2c-5:
therm_windtunnel: attach_adapter method is deprecated
Jun  4 13:44:10 power-debian kernel: [   42.388470] i2c i2c-5: Please use
another way to instantiate your i2c_client
Jun  4 13:44:10 power-debian kernel: [   42.392908] [drm] nouveau 0000:00:10.0:
Parsing VBIOS init table 0 at offset 0x0149
Jun  4 13:44:10 power-debian kernel: [   42.393046] [drm] nouveau 0000:00:10.0:
Parsing VBIOS init table 1 at offset 0x045F
Jun  4 13:44:10 power-debian kernel: [   42.408019] [drm] nouveau 0000:00:10.0:
Parsing VBIOS init table 2 at offset 0x0264
Jun  4 13:44:10 power-debian kernel: [   42.428120] [drm] nouveau 0000:00:10.0:
Parsing VBIOS init table 3 at offset 0x09EE
Jun  4 13:44:10 power-debian kernel: [   42.428180] [drm] nouveau 0000:00:10.0:
Parsing VBIOS init table 4 at offset 0x041F
Jun  4 13:44:10 power-debian kernel: [   42.492733] i2c i2c-6:
therm_windtunnel: attach_adapter method is deprecated
Jun  4 13:44:10 power-debian kernel: [   42.492771] i2c i2c-6: Please use
another way to instantiate your i2c_client
Jun  4 13:44:10 power-debian kernel: [   42.732051] [drm] nouveau 0000:00:10.0:
1 available performance level(s)
Jun  4 13:44:10 power-debian kernel: [   42.732107] [drm] nouveau 0000:00:10.0:
0: memory 400MHz
Jun  4 13:44:10 power-debian kernel: [   42.732148] [drm] nouveau 0000:00:10.0:
c: memory 351MHz core 270MHz
Jun  4 13:44:10 power-debian kernel: [   42.732434] [TTM] Zone  kernel:
Available graphics memory: 381492 kiB.
Jun  4 13:44:10 power-debian kernel: [   42.732460] [TTM] Zone highmem:
Available graphics memory: 774708 kiB.
Jun  4 13:44:10 power-debian kernel: [   42.732482] [TTM] Initializing pool
allocator.
Jun  4 13:44:10 power-debian kernel: [   42.732545] [drm] nouveau 0000:00:10.0:
Detected 32MiB VRAM
Jun  4 13:44:10 power-debian kernel: [   42.734905] [drm] nouveau 0000:00:10.0:
64 MiB GART (aperture)
Jun  4 13:44:10 power-debian kernel: [   42.736697] [drm] Supports vblank
timestamp caching Rev 1 (10.10.2010).
Jun  4 13:44:10 power-debian kernel: [   42.736729] [drm] No driver support for
vblank timestamp query.
Jun  4 13:44:10 power-debian kernel: [   42.737146] [drm] nouveau 0000:00:10.0:
Setting dpms mode 3 on vga encoder (output 0)
Jun  4 13:44:10 power-debian kernel: [   42.758052] i2c i2c-7:
therm_windtunnel: attach_adapter method is deprecated
Jun  4 13:44:10 power-debian kernel: [   42.758088] i2c i2c-7: Please use
another way to instantiate your i2c_client
Jun  4 13:44:10 power-debian kernel: [   42.774005] No connectors reported
connected with modes
Jun  4 13:44:10 power-debian kernel: [   42.774037] [drm] Cannot find any crtc
or sizes - going 1024x768
Jun  4 13:44:10 power-debian kernel: [   42.774261] [drm] nouveau 0000:00:10.0:
allocated 1024x768 fb: 0x49000, bo eedf4800
Jun  4 13:44:10 power-debian kernel: [   42.775966] Console: switching to
colour frame buffer device 128x48
Jun  4 13:44:10 power-debian kernel: [   42.777549] fb0: nouveaufb frame buffer
device
Jun  4 13:44:10 power-debian kernel: [   42.777578] drm: registered panic
notifier
Jun  4 13:44:10 power-debian kernel: [   42.777617] [drm] Initialized nouveau
0.0.16 20090420 for 0000:00:10.0 on minor 0

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--- Comment #69 from Andrey Gusev <ronne at list.ru> 2012-07-18 15:49:02
PDT ---
Created attachment 64352
  --> https://bugs.freedesktop.org/attachment.cgi?id=64352
Log of kernel 3.4.5

Problem is still actual on  the kernel 3.4.5

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--- Comment #70 from Andrey Gusev <ronne at list.ru> 2012-07-18 19:51:53
PDT ---
Created attachment 64361
  --> https://bugs.freedesktop.org/attachment.cgi?id=64361
Patch to kernel to test fabricate of dcd output

I tried to shrink a bug. NV driver uses i2c bus for detection
[    71.463] (II) NV(0): I2C bus "DDC" initialized.
[    71.463] (II) NV(0): Probing for analog device on output A...
[    71.465] (--) NV(0):   ...can't find one
[    71.465] (II) NV(0): Probing for analog device on output B...
[    71.467] (--) NV(0):   ...can't find one
[    71.467] (II) NV(0): Probing for EDID on I2C bus A...
[    71.467] (II) NV(0): I2C device "DDC:ddc2" registered at address
0xA0.
[    71.470] (II) NV(0):   ... none found
[    71.470] (II) NV(0): Probing for EDID on I2C bus B...
[    71.519] (--) NV(0): DDC detected a DFP:
[    71.519] (II) NV(0): Manufacturer: GSM  Model: 4e3a  Serial#: 78597
[    71.519] (II) NV(0): Year: 2008  Week: 10
[    71.519] (II) NV(0): EDID Version: 1.3
Current code doesn't init i2c because it can't read dcb table. So I
change
order of initialization and make initialization of i2c after parsing dcb table.
Code of initialization of i2c tries to read dcb table itself, but for my card
it is failed to do it.

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--- Comment #71 from Andrey Gusev <ronne at list.ru> 2012-07-18 19:55:43
PDT ---
Created attachment 64362
  --> https://bugs.freedesktop.org/attachment.cgi?id=64362
Log after previous patch

Unfortunately, this change doesn't make good effect. I guess code of
fabrication outputs for PowerMac is incorrect.

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--- Comment #72 from Andrey Gusev <ronne at list.ru> 2012-07-18 20:52:32
PDT ---
Created attachment 64364
  --> https://bugs.freedesktop.org/attachment.cgi?id=64364
Log of initialization

I noted, that outputs fabricate only for PowerMac4,5, but I have PowerMac3,6.
After changing I got this log. There is a correct resolution of monitor
1600X1200, but monitor suspended and I didn't see console.

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Andrey Gusev <ronne at list.ru> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #64352|0                           |1
        is obsolete|                            |
  Attachment #64361|0                           |1
        is obsolete|                            |
  Attachment #64362|0                           |1
        is obsolete|                            |
  Attachment #64364|0                           |1
        is obsolete|                            |

--- Comment #73 from Andrey Gusev <ronne at list.ru> 2012-07-20 08:18:52
PDT ---
Created attachment 64417
  --> https://bugs.freedesktop.org/attachment.cgi?id=64417
Log initialization

After this patch
diff -u linux_stock/drivers/gpu/drm/nouveau/nouveau_bios.c
linux-3.4/drivers/gpu/drm/nouveau/nouveau_bios.c
--- linux_stock/drivers/gpu/drm/nouveau/nouveau_bios.c    2012-07-18
23:28:42.467787857 +0400
+++ linux-3.4/drivers/gpu/drm/nouveau/nouveau_bios.c    2012-07-20
00:05:20.048039574 +0400
@@ -6092,10 +6092,18 @@
 #ifdef __powerpc__
     /* Apple iMac G4 NV17 */
     if (of_machine_is_compatible("PowerMac4,5")) {
+        NV_INFO(dev, "Fabricate outputs for Apple iMac G4 NV17\n");
         fabricate_dcb_output(dcb, OUTPUT_TMDS, 0, all_heads, 1);
         fabricate_dcb_output(dcb, OUTPUT_ANALOG, 1, all_heads, 2);
         return;
     }
+    /* Apple PowerMac G4 NV17 */
+    if (of_machine_is_compatible("PowerMac3,6")) {
+        NV_INFO(dev, "Fabricate outputs for Apple PowerMac G4
NV17\n");
+        fabricate_dcb_output(dcb, OUTPUT_TMDS, 0, all_heads, 1);
+        fabricate_dcb_output(dcb, OUTPUT_TMDS, 1, all_heads, 2);
+        return;
+    }
 #endif

     /* Make up some sane defaults */
@@ -6485,19 +6493,23 @@
     if (!NVInitVBIOS(dev))
         return -ENODEV;

+    NV_INFO(dev, "Init BIOS");
     ret = nouveau_parse_vbios_struct(dev);
     if (ret)
         return ret;

-    ret = nouveau_i2c_init(dev);
+    NV_INFO(dev, "Init MXM");
+    ret = nouveau_mxm_init(dev);
     if (ret)
         return ret;

-    ret = nouveau_mxm_init(dev);
+    NV_INFO(dev, "Parse dcd table");
+    ret = parse_dcb_table(dev, bios);
     if (ret)
         return ret;

-    ret = parse_dcb_table(dev, bios);
+    NV_INFO(dev, "Init I2C");
+    ret = nouveau_i2c_init(dev);
     if (ret)
         return ret;

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Marcin Slusarz <marcin.slusarz at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #64417|text/x-log                  |text/plain
          mime type|                            |

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Marcin Slusarz <marcin.slusarz at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #64364|text/x-log                  |text/plain
          mime type|                            |

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Marcin Slusarz <marcin.slusarz at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #64362|text/x-log                  |text/plain
          mime type|                            |

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Marcin Slusarz <marcin.slusarz at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #64352|text/x-log                  |text/plain
          mime type|                            |

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--- Comment #74 from Marcin Slusarz <marcin.slusarz at gmail.com>
2012-07-20 19:02:25 PDT ---
So, does it work with this patch?

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--- Comment #75 from Andrey Gusev <ronne at list.ru> 2012-07-20 19:38:51
PDT ---
No, it doesn't work. Monitor suspends.

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Ilia Mirkin <imirkin at alum.mit.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Driver can't detect video   |[NV17] PowerMac3,6 Driver
                   |output and xserver doesn't  |can't detect video
output
                   |start                       |and xserver doesn't start

--- Comment #76 from Ilia Mirkin <imirkin at alum.mit.edu> ---
I noticed that in your patch you have OUTPUT_TMDS twice instead of
OUTPUT_ANALOG the second time. Was that on purpose? Esp since it sounds like
you're using the analog "part" of the DVI cable, that seems like
it could be
relevant. Does this hardware still exist in a working state to test potential
patches?

Also, am I correct in understanding that the old "nv" driver worked
fine?

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--- Comment #77 from Andrey Gusev <ronne at list.ru> ---
This card doesn't have analog output, see attachment 25009 in this bug. I
have
this hardware and use dvi output with nv driver. I tried to find rams from
other cards and emulate tables from bios, but it doesn't help.
I saw workarounds was removed from kernel part. It would be good if kernel
driver have options for such cases. I haven't tried kms in last kernel, but
I
think nothing changed. Patches are welcome. I don't know enough about
hardware
to fix it.

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--- Comment #78 from Ilia Mirkin <imirkin at alum.mit.edu> ---
The vast majority of DVI ports on graphics cards can do both digital and
analog. That's what makes DVI -> VGA adapters possible. Is the screen
that you
have connected digital or analog?

Can you supply the output of

xrandr --verbose

when running with the "nv" driver? I just looked over the nv
driver's codebase,
and unfortunately I don't see any relevant PowerMac hacks, so there must be
something it knows that nouveau doesn't.

Can you also upload a copy of your vbios? I think nouveau ignores it for NV17,
but would still be interesting to see what it says. (With nouveau loaded, you
can get it out of /sys/kernel/debug/dri/0/vbios.rom, or you can use the
envytools nvagetbios utility.)

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--- Comment #79 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Also, with nouveau loaded (with modesetting), would be great to see the output
of

ls /sys/class/drm/
grep . /sys/class/drm/card*-*/*

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--- Comment #80 from Andrey Gusev <ronne at list.ru> ---
Created attachment 85418
  --> https://bugs.freedesktop.org/attachment.cgi?id=85418&action=edit
xrandr --verbose

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--- Comment #81 from Andrey Gusev <ronne at list.ru> ---
Created attachment 85419
  --> https://bugs.freedesktop.org/attachment.cgi?id=85419&action=edit
bad bios

There is err on extracting
./nvagetbios -s PROM  >mybios
Attempt to extract the vbios from card 0 (nv17) using PROM
Invalid checksum. Broken vbios or broken retrieval method?

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--- Comment #82 from Andrey Gusev <ronne at list.ru> ---
1)ls /sys/class/drm/
card0
card0-VGA-1
controlD64
ttm
version

2)grep . /sys/class/drm/card*-*/*
grep: /sys/class/drm/card0-VGA-1/device: Is a directory
/sys/class/drm/card0-VGA-1/dpms:On
/sys/class/drm/card0-VGA-1/enabled:disabled
/sys/class/drm/card0-VGA-1/status:disconnected
grep: /sys/class/drm/card0-VGA-1/subsystem: Is a directory

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--- Comment #83 from Andrey Gusev <ronne at list.ru> ---
My screen is digital. nv driver is stupid, it tries every possible output.
Nouveau is more smart, it searches this information in bios. So nv works,
nouveau doesn't.

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--- Comment #84 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Did you try the other ways of obtaining the vbios? (e.g. using pramin with
nvagetbios, or looking in the path I mentioned, with debugfs mounted, and
nouveau loaded).

Also, would love to see a kernel log for a semi-recent kernel (say, 3.8+) that
shows what nouveau thinks it's doing.

The fact that you only see the VGA-1 connector is clearly a bad sign -- you
should have 2 DVI-I connectors, and no VGA connectors (based on the photo).

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--- Comment #85 from Andrey Gusev <ronne at list.ru> ---
Created attachment 85421
  --> https://bugs.freedesktop.org/attachment.cgi?id=85421&action=edit
boot on 3.10.9 kernel

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--- Comment #86 from Andrey Gusev <ronne at list.ru> ---
I don't have debugfs enabled in kernel. I can rebuild it, but it need time.

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--- Comment #87 from Andrey Gusev <ronne at list.ru> ---
Created attachment 85424
  --> https://bugs.freedesktop.org/attachment.cgi?id=85424&action=edit
vbios from debugfs

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--- Comment #88 from Andrey Gusev <ronne at list.ru> ---
Also, there is a file /sys/kernel/debug/dri/64/vbios.rom in the file system.

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--- Comment #89 from Andrey Gusev <ronne at list.ru> ---
Created attachment 85441
  --> https://bugs.freedesktop.org/attachment.cgi?id=85441&action=edit
log of loading with workaround

I return workaround to code for PowerMac 3,6:
+    if (of_machine_is_compatible("PowerMac3,6")) {
+        fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS, 0, all_heads, 1);
+        fabricate_dcb_output(dcb, DCB_OUTPUT_ANALOG, 1, all_heads, 2);
+        return;
+    }
Unfortunately, it doesn't help. Also, there is output card0-DVI-I-1.
cat classdrm 
card0
card0-DVI-I-1
controlD64
ttm
version

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--- Comment #90 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Very interesting. Note the

[   22.983172] nouveau  [     DRM] allocated 1600x1200 fb: 0x9000, bo ef220600

That means _something_ is working. I assume 1600x1200 is your monitor's
preferred resolution. What happens if you boot with the kernel command line
options "drm.debug=0xe nouveau.debug=debug"? That should provide a
bunch more
info.

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--- Comment #91 from Andrey Gusev <ronne at list.ru> ---
Created attachment 85443
  --> https://bugs.freedesktop.org/attachment.cgi?id=85443&action=edit
kernel log with parameters drm.debug=0xe nouveau.debug=debug

Yes, 1600X1200 is my resolution.

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--- Comment #92 from Ilia Mirkin <imirkin at alum.mit.edu> ---
What happens if you only add:

fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS, 1, all_heads, 2);

Or only add:

fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS, 1, all_heads, 1);

(These should hopefully echo the much earier patches that seemed to help you.)

[i.e. same as in comment #89, but with just one fabricated dcb at a time, and
note that I kept the i2c index at 1 for both]

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Andrey Gusev <ronne at list.ru> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #85443|0                           |1
        is obsolete|                            |

--- Comment #93 from Andrey Gusev <ronne at list.ru> ---
Created attachment 91839
  --> https://bugs.freedesktop.org/attachment.cgi?id=91839&action=edit
log loading kernel from git

I tried to add only one line:
fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS, 1, all_heads, 2);

I see white horizontal lines on the screen and all hung up.

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--- Comment #94 from Ilia Mirkin <imirkin at alum.mit.edu> ---
(In reply to comment #93)
> Created attachment 91839 [details]
> log loading kernel from git
> 
> I tried to add only one line:
> fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS, 1, all_heads, 2);
> 
> I see white horizontal lines on the screen and all hung up.
Ugh, looks like nouveau might have grown a bug on ppc or something -- the
traceback isn't related to the line that you added (hopefully!). What if you
apply it to a 3.10 kernel or whatever you were trying with earlier?

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--- Comment #95 from Andrey Gusev <ronne at list.ru> ---
Created attachment 91856
  --> https://bugs.freedesktop.org/attachment.cgi?id=91856&action=edit
log of 3.10.0 kernel

I tried fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS, 1, all_heads, 1); on the
kernel 3.0.10. Monitor suspended after showing white lines.

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--- Comment #96 from Ilia Mirkin <imirkin at alum.mit.edu> ---
So... that's better -- before it was completely shut off, right? I'll
keep
looking at this to see if I can figure something more out. I think we're on
the
right track, just not right enough.

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--- Comment #97 from Andrey Gusev <ronne at list.ru> ---
I made reboot or shutdown. There isn't difference. I want to pay attention,
than nvidiafb works perfect. May be it output can give a hint.
[    0.442165] nvidiafb: Device ID: 10de0172 
[    0.446576] nvidiafb: CRTC0 analog not found
[    0.450534] nvidiafb: CRTC1 analog not found
[    0.527317] i2c i2c-0: unable to read EDID block.
[    0.646311] i2c i2c-0: unable to read EDID block.
[    0.765310] i2c i2c-0: unable to read EDID block.
[    1.021533] nvidiafb: EDID found from BUS2
[    1.021579] nvidiafb: CRTC 1 is currently programmed for DFP
[    1.021598] nvidiafb: Using DFP on CRTC 1
[    1.021615] nvidiafb: Panel size is 1600 x 1200
[    1.021633] nvidiafb: Panel is TMDS
[    1.023208] nvidiafb: Flat panel dithering disabled
[    1.030025] Console: switching to colour frame buffer device 200x75
[    1.037505] nvidiafb: PCI nVidia NV17 framebuffer (32MB @ 0x98000000)

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--- Comment #98 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Sorry to keep making you try stuff, but can you put up a log of a kernel with

if (of_machine_is_compatible("PowerMac3,6")) {
  fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS, 1, all_heads, 2);
  return;
}

[Also, looking at Stuart's patch that worked for you all that while ago...
perhaps instead of all_heads (3 in your case) it should be "2"? Worth
trying
too, but unless it produces substantially diff/better results, I don't need
a
log from it.]

(You can use 3.13 now -- the bug with instmem you ran into should be fixed
now.)

And boot with

nouveau.debug=trace drm.debug=0xe

This should produce a bunch of debug info, which may be helpful. Thanks for
that nvidiafb log too.

Also, to be clear -- that fabricate_dcb_output line changes behaviour from
"screen suspends due to no output" to "screen on with garbage on
it", right?

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Andrey Gusev <ronne at list.ru> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #85421|0                           |1
        is obsolete|                            |
  Attachment #91856|0                           |1
        is obsolete|                            |

--- Comment #99 from Andrey Gusev <ronne at list.ru> ---
Created attachment 92954
  --> https://bugs.freedesktop.org/attachment.cgi?id=92954&action=edit
Strings are realted to nouveau and drm in the kernel log.

I got kernel 3.13.0. Bug is fixed. I haven't tried kernel without patches
rather long time. Previously, my monitor suspended and all. But fresh kernel
have another behavior. I can see ugly console  in the top part of the screen
and white trash in the bottom part. If it helps, I can attach a screen photo.

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--- Comment #100 from Ilia Mirkin <imirkin at alum.mit.edu> ---
(In reply to comment #99)
> Created attachment 92954 [details]
> Strings are realted to nouveau and drm in the kernel log.
> 
> I got kernel 3.13.0. Bug is fixed. I haven't tried kernel without
patches
> rather long time. Previously, my monitor suspended and all. But fresh
kernel
> have another behavior. I can see ugly console  in the top part of the
screen
> and white trash in the bottom part. If it helps, I can attach a screen
photo.
Doesn't sound like the bug is fixed... it's just not as bad as before.

[   21.317011] nouveau  [     DRM] allocated 1024x768 fb: 0x9000, bo efa73c00

That means it's not really detecting your monitor, since the resolution
should
be higher. Can you try the modification I suggested in comment #98 ? And attach
the logs with the additional debug info from the parameters I mentioned there?

As for the trash that you see -- does it go away if you clear the screen or
otherwise make it so that the console updates that area (e.g. run a command
with a lot of output, etc).

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--- Comment #101 from Andrey Gusev <ronne at list.ru> ---
Created attachment 92956
  --> https://bugs.freedesktop.org/attachment.cgi?id=92956&action=edit
Kernel log for fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS, 1, 2, 2);

Monitor suspends with patch.
+       if (of_machine_is_compatible("PowerMac3,6")) {
+               fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS, 1, 2, 2);
+               return;
+       }

I could see log in without patch and I saw symbols on the screen. I'll
recheck
reaction on big output and switching virtual consoles.
I will try patch from comment 98.

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--- Comment #102 from Andrey Gusev <ronne at list.ru> ---
I rechecked behavior without patch. I see a console in the left top angle.
There is another righter it. Second is the clone of the first. I see same
output. I see a log of loading in this console, can log in, switch virtual
terminal. There is  a trash on the bottom side of the screen.
I guess the size of console is 1024x768. The size of the second is
(1600-1024)x768.

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--- Comment #103 from Andrey Gusev <ronne at list.ru> ---
Created attachment 93009
  --> https://bugs.freedesktop.org/attachment.cgi?id=93009&action=edit
kernel log for patch: fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS, 1, all_heads,
2);

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Tim Riker <Tim at Rikers.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |Tim at Rikers.org

--- Comment #104 from Tim Riker <Tim at Rikers.org> ---
What became of this? I installed Ubuntu 14.04 on a Powermac G4 Quicksilver 2002
edition and got a blank screen. I look at the output and it thinks it's
using
VGA when I suspect it should be using TMDS

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--- Comment #105 from Ilia Mirkin <imirkin at alum.mit.edu> ---
(In reply to Tim Riker from comment #104)
> What became of this? I installed Ubuntu 14.04 on a Powermac G4 Quicksilver
> 2002 edition and got a blank screen. I look at the output and it thinks
it's
> using VGA when I suspect it should be using TMDS
Nothing AFAIK. I ran out of ideas to try. You can look through some of my
suggested patches and try some of them out, perhaps you'll get better
results.
As I recall, Andrey had some success using xf86-video-nv and/or nvidiafb.

If you have the necessary skills, it shouldn't be *too* difficult to add a
*ton* of prints in dispnv04/* and nvidiafb and compare where they start making
different decisions about stuff.

Note that dispnv04/* should map pretty closely to xf86-video-nv -- that driver
was originally imported as nouveau into the kernel and then modified...
dispnv04 is the bits of it that were modified the least. [The details of the
history are a bit off there, but close enough... xf86-video-nv was first forked
as xf86-video-nouveau and *then* imported into the kernel...]

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Martin Peres <martin.peres at free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |MOVED

--- Comment #106 from Martin Peres <martin.peres at free.fr> ---
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