Nouveau - Mar 2008 - [Bug 15206] New: [dualhead, randr12, ppc] Second head displays nothing

http://bugs.freedesktop.org/show_bug.cgi?id=15206

           Summary: [dualhead, randr12, ppc] Second head displays nothing
           Product: xorg
           Version: unspecified
          Platform: PowerPC
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: robbat2 at gentoo.org
         QAContact: xorg-team at lists.x.org


Created an attachment (id=15469)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=15469)
Xorg.0.log

On my PPC, trying to get dualhead working. I get nothing at all on the second
display - the LCD thinks that there is no signal. xrandr does show two devices,
but xrandr --auto does not active the second head at all.

Platform: PPC64 (G5) w/ 32-bit userspace.
Distro: Gentoo
xf86-video-nouveau git commit: 6924d1ac900524d0978a02f8f8509faab1809b62
x11-drm git commit: a244d2905052d3263bdcc26b295558a354702b89

Graphics card (lspci -nn -s): 
2:0000:0b:00.0 VGA compatible controller: nVidia Corporation NV43 [GeForce
6600] (rev a2)

Display devices:
2x Samsung SyncMaster 206BW.


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--- Comment #1 from Robin Johnson <robbat2 at gentoo.org>  2008-03-26
01:34:39 PST ---
Created an attachment (id=15470)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=15470)
xrandr output


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--- Comment #2 from Maarten Maathuis <madman2003 at gmail.com>  2008-03-26
01:42:19 PST ---
This is a known issue, the G5's have a 2nd dvi transmitter on their card. We
currently don't know how to activate that.


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--- Comment #3 from Robin Johnson <robbat2 at gentoo.org>  2008-03-26
02:13:57 PST ---
Any hints/ideas/thumb-sucking on where to probe and muck around?


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Robin Johnson <robbat2 at gentoo.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #15470|xrandr output               |xrandr output (dual DVI)
        description|                            |




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--- Comment #4 from Robin Johnson <robbat2 at gentoo.org>  2008-03-26
02:17:52 PST ---
Created an attachment (id=15471)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=15471)
xrandr output, mixed VGA/DVI


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--- Comment #5 from Stuart Bennett <sb476 at cam.ac.uk>  2008-05-06
11:37:03 PST ---
You might like to try again with an up-to-date checkout. Off-ship dvi is now
fixed for nv2x and nv3x x86, but I've no idea about nv4x and PPC :) It will
probably help to boot with both monitors plugged so the open firmware stuff can
set up as much as possible.


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Paulo R. Zanoni <przanoni at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |przanoni at gmail.com




--- Comment #6 from Paulo R. Zanoni <przanoni at gmail.com>  2008-06-05
11:22:32 PST ---
I also have this problem, but on x86.

If I open 1 xserver with 2 nouveau screens, one of the screens will open
normally and the other will get black. X won't put anything wrong on the log
(as if everything started normally).

Then, if I open an X client and then kill it (like: DISPLAY=:0.0 xterm, and
then ctrl+c) the Xserver will crash, and will print something like this:

(EE) NOUVEAU(0): [DRI] Locking deadlock.
        Already locked with context 136431004,
        trying to lock with context 2.
(EE) NOUVEAU(0): Error creating device

Fatal server error:
AddScreen/ScreenInit failed for driver 0


Should "2" be a pointer? Unitialized variable problem?


My xorg.conf is configured to open a screen for each output.



I also discovered that if I use one nouveau in one screen and nv in the other,
the same problem will happen.

There is also a related problem that might have the same cause:
If I open 1 xserver with a nouveau screen and a radeonhd screen, both screens
will open normally, but when I kill an X client (like opening an xterm and then
killing it) the machine will freeze, and won't even respond to ping!

Since both events are triggered when a client dies, they might have the same
cause. Maybe they are not related.

Cards I used to test:
GeForce 7300
GeForce fx 5500

And the ATI mentioned as a RS690 (X1200).

Nouveau version is the most recent
today.(e034616ab2bbbc486f90c5f64e2bd2de194cf92e)


Pieces of xorg.conf:
#### nvidia1 DVI-to-VGA + VGA ####
Section "Device"
    Identifier     "nvidia1"
    Driver         "nouveau"
    BusID          "PCI:2:0:0"

    Option "monitor-DVI-A-0" "nvidia1-DVI"
    Option "monitor-VGA-0"   "nvidia1-VGA"
EndSection

Section "Monitor"
    Identifier "nvidia1-DVI"
    Option "PreferredMode" "1024x768"
    Option "Enable" "true"
EndSection

Section "Monitor"
    Identifier "nvidia1-VGA"
    Option "PreferredMode" "1024x768"
    Option "Enable" "true"
    Option "RightOf" "nvidia1-DVI"
EndSection

#### nvidia2 DVI cable + VGA####
Section "Device"
    Identifier     "nvidia2"
    Driver         "nouveau"
    BusID          "PCI:3:1:0"

    Option "monitor-DVI-A-0" "nvidia2-DVI"
    Option "monitor-VGA-0"   "nvidia2-VGA"
EndSection

Section "Monitor"
    Identifier "nvidia2-DVI"
    Option "PreferredMode" "1024x768"
    Option "Enable" "true"
EndSection

Section "Monitor"
    Identifier "nvidia2-VGA"
    Option "PreferredMode" "1024x768"
    Option "Enable" "true"
    Option "RightOf" "nvidia2-DVI"
EndSection


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Paulo R. Zanoni <przanoni at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Platform|PowerPC                     |All




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--- Comment #7 from Stuart Bennett <sb476 at cam.ac.uk>  2008-06-17
02:32:02 PST ---
Paulo, please open a separate bug for your issue; your problem is using two
cards simultaneously, the original bug is someone using one card with two
monitors.


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--- Comment #8 from Robin Johnson <robbat2 at gentoo.org>  2008-06-19
22:52:06 PST ---
Created an attachment (id=17245)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=17245)
Xorg.0.log

(In reply to comment #5)
> You might like to try again with an up-to-date checkout. Off-ship dvi is
now
> fixed for nv2x and nv3x x86, but I've no idea about nv4x and PPC :) It
will
> probably help to boot with both monitors plugged so the open firmware stuff
can
> set up as much as possible.
Sorry about the delay, but I was busy, and didn't get a chance to test it
until
now.

It's not moved forward, in fact it's even worse now. X doesn't even
start on a
single display, let alone get two of them up. Here's the kernel log, and
I'll
attach the Xorg.log in a moment.

http://bugs.freedesktop.org/show_bug.cgi?id=15206





--- Comment #9 from Robin Johnson <robbat2 at gentoo.org>  2008-06-20
19:35:38 PST ---
It's an endian problem.

0x36 into the BIOS, there is a pointer to the DCB.
On PPC, the pointer is _NOT_ swapped. If it does get swapped, then it points to
a valid DCB structure. The definitions of le16_to_cpu/le32_to_cpu need
changing!

0000030: 0100 0000 b010 0b18 3036 2f32 342f 3035
...
0001810: 18cb bddc 4e85 18d8 18e4 18f0 18fe 1812

See the attached hexdump of NVDA,BMP.


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--- Comment #10 from Robin Johnson <robbat2 at gentoo.org>  2008-06-20
19:35:59 PST ---
Created an attachment (id=17275)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=17275)
Hexdump from /proc/device-tree/pci at 0,f0000000/NVDA,Parent at 0/NVDA,BMP


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Robin Johnson <robbat2 at gentoo.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #15469|0                           |1
        is obsolete|                            |
  Attachment #15470|0                           |1
        is obsolete|                            |
  Attachment #15471|0                           |1
        is obsolete|                            |
  Attachment #17245|0                           |1
        is obsolete|                            |




--- Comment #11 from Robin Johnson <robbat2 at gentoo.org>  2008-06-20
19:41:29 PST ---
Created an attachment (id=17276)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=17276)
20080620_Xorg_nouveau.log

After forcibly changing the le{16,32}_to_cpu definitions to do the
bswap{16,32}, here's what happens.

The full Xorg.log is attached, but the snippet at the end that catches my eye
is:
(II) [drm] DRM interface version 1.3
(II) [drm] DRM open master succeeded.
(II) NOUVEAU(0): [drm] Using the DRM lock SAREA also for drawables.
(II) NOUVEAU(0): [drm] framebuffer handle = 0x98000000
(II) NOUVEAU(0): [drm] added 1 reserved context for kernel
(II) NOUVEAU(0): X context handle = 0x1
(II) NOUVEAU(0): [drm] installed DRM signal handler
(EE) NOUVEAU(0): Failed to allocate memory for framebuffer!


Kernel log:
[84617.583277] [drm] Initialized drm 1.1.0 20060810
[84620.167843] PCI: Unable to reserve mem region #2:10000000 at 90000000 for
device 0000:0b:00.0
[84620.168414] [drm] Detected an NV40 generation card (0x043100a4)
[84620.168423] [drm] Initialized nouveau 0.0.10
drm-2.3.0-1298-g8712f0a17bb135d4a on minor 0
[84620.168461] [drm] Used old pci detect: framebuffer loaded
[84621.597255] [drm] OF bios successfully copied (6447 bytes)
[84621.598177] [drm] OF bios successfully copied (6447 bytes)
[84622.202587] [drm] OF bios successfully copied (6447 bytes)
[84622.203405] [drm] OF bios successfully copied (6447 bytes)
[84622.204114] [drm] OF bios successfully copied (6447 bytes)
[84622.253426] [drm] Allocating FIFO number 0
[84622.266771] [drm] nouveau_fifo_alloc: initialised FIFO 0
[84622.266940] [drm:nouveau_ioctl_getparam] *ERROR* unknown parameter
-4611686003779437824
[84622.267055] [drm:nouveau_ioctl_getparam] *ERROR* unknown parameter
-4611686003779437824
[84622.267157] [drm:nouveau_ioctl_getparam] *ERROR* unknown parameter
-4611686003779437824
[84623.330948] [drm] nouveau_fifo_free: freeing fifo 0


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--- Comment #12 from Robin Johnson <robbat2 at gentoo.org>  2008-06-20
20:07:21 PST ---
Tracing the memory allocation failure:
src/nv_driver.c:1556:NVMapMem fails calling nouveau_bo_new(...), returns
-ENOMEM;
src/nouveau_bo.c:55:nouveau_bo_new drmCommandWriteRead fails, returns -ENOMEM;


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--- Comment #13 from Robin Johnson <robbat2 at gentoo.org>  2008-06-21
14:39:34 PST ---
Ok, I made some very significant progress now. The memory allocation issue was
a bug in x11-drm, and was fixed by commit
1915de2c56d71bbd04a7c085cbd35fbe8e33af9d.

The display does come up [1], and xrandr thinks that both outputs work.
However, when I do "xrandr --output DVI-D-1 --right-of DVI-D-0", while
the
taskbar etc all expand, nothing goes onto the second display. The power LED
continues it's blinking to indicate there is no signal.

[1] Additionally, the bswap hack seems to have mucked up colors. White comes
out as yellow. Magenta and cyan are reversed. Red and green are reversed.
Attachment coming soon.


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--- Comment #14 from Robin Johnson <robbat2 at gentoo.org>  2008-06-21
14:40:25 PST ---
Created an attachment (id=17284)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=17284)
New Xorg.log

New Xorg.log that shows both DVI-D-{0,1} coming up on PPC64-32ul / NV43, but
there is no actual output on DVI-D-1 yet.


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Robin Johnson <robbat2 at gentoo.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Depends on|                            |16171




--- Comment #15 from Robin Johnson <robbat2 at gentoo.org>  2008-06-21
16:23:01 PST ---
Ok, the bswap and color issue appears to be because of bug 16171 in
xorg-server.


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Stuart Bennett <sb476 at cam.ac.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ben.kero at gmail.com




--- Comment #16 from Stuart Bennett <sb476 at cam.ac.uk>  2009-01-07
15:46:11 PST ---
*** Bug 19450 has been marked as a duplicate of this bug. ***


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--- Comment #17 from Danny <moondrake at gmail.com>  2009-01-07 21:01:55
PST ---
Stuart,
we cannot trace the driver on OSX, but we can make register dumps. Would it be
useful to dump and compare all known regs under OSX?

d.


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--- Comment #18 from Stuart Bennett <sb476 at cam.ac.uk>  2009-01-08
06:49:45 PST ---
"maybe" :)

This is why someone with hardware and time/motivation needs to try it;
that's
certainly a good first method of attack, equally it could be some magic bits in
an unknown register.  Worst of all, it may need some I2C init sequence passing
to the off-die chip, which makes it fairly hard to work out.

I don't know how much of this is done in OpenFirmware and how much the Mac
driver -- if the OF can light up the DVI-I-1 output at boot there's a
reasonable chance someone could get it to work.


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--- Comment #19 from Lucas Stach <dev at lynxeye.de> 2011-02-15 03:35:14
PST ---
This bug is against an ancient version of nouveau. Is this still an issue with
recent nouveau?

Please retest. If we get no update within one month I will close this bug.
Thanks.

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--- Comment #20 from Robin Johnson <robbat2 at gentoo.org> 2011-02-15
13:04:00 PST ---
I no longer own the PPC hardware where the bug occurred, so I cannot test.

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Lucas Stach <dev at lynxeye.de> changed:

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

--- Comment #21 from Lucas Stach <dev at lynxeye.de> 2011-03-31 03:27:01
PDT ---
Closing as we can't process this bug further.

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Bug 15206 depends on bug 16171, which changed state.

Bug 16171 Summary: X_{BIG|LITTLE}_ENDIAN not defined in dix-config.h
https://bugs.freedesktop.org/show_bug.cgi?id=16171

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

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