Nouveau - Aug 2008 - [Bug 17185] New: Black Display when using Nouveau on 7300gt with dvi to hdmi attached Sony 32W4000

http://bugs.freedesktop.org/show_bug.cgi?id=17185

           Summary: Black Display when using Nouveau on 7300gt with dvi to
                    hdmi attached Sony 32W4000
           Product: xorg
           Version: git
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: henrik.sorensen at gmail.com
         QAContact: xorg-team at lists.x.org


Created an attachment (id=18354)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=18354)
Nouveau Xorg.log

I wanted to see how nouveau handled 24hz video playback, since the blob
stutters every 15-17 seconds. However, I never got that far, as nouveau just
gives me a black display including the virtual terminals. The nv driver works,
but only if the blob has run before. On a fresh boot nv shows the same black
display behaviour.


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--- Comment #1 from Henrik S?rensen <henrik.sorensen at gmail.com> 
2008-08-18 04:32:33 PST ---
Created an attachment (id=18355)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=18355)
Xorg.log with nvidia blob


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--- Comment #2 from Stuart Bennett <sb476 at cam.ac.uk>  2008-08-18
06:51:20 PST ---
Do you mean that if you start the computer with only this display attached, the
only way you ever see anything is when the nvidia driver loads? No BIOS screen,
no boot messages, no console? Otherwise, I don't understand the bit about
"a
black display including the virtual terminals".

In IRC you mentioned that "Nouveau did complain about unknown DCB entries
when
I started it after the blob" -- could you attach an xorg log showing these
complaints?

If you run the blob before Nouveau, what happens when you start Nouveau? Does
it load X successfully? Does it load X, but leave the screen black? Does it
fail to start at all?


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--- Comment #3 from Henrik S?rensen <henrik.sorensen at gmail.com> 
2008-08-18 07:26:58 PST ---
No, I get full video from the time the machine is turned on, bios messages,
grub loader, kernel messages, VTs. (tv says it gets a 1080p signal, so the vga
bios must be telling the card to scale). However, once X with nouveau or nv
starts, I lose all video. The appears to think it's still getting a signal,
but
the screen is black both in X and the VTs.

I THOUGHT at first, it was complaining about unknown dcb entries. But it was
just the raw dcb dump right before it paniced because of the blob glx being
found.

If you run nouveau after the blob, remembering to remove the nvidia libglx, the
xserver starts, but with the same behavior, no image.


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--- Comment #4 from Stuart Bennett <sb476 at cam.ac.uk>  2008-08-18
08:54:24 PST ---
If you use nv, and get a black screen, then return to VT, does the VT reappear
on the screen, or does the screen stay black?

Since randr12-less nouveau and the nv driver are pretty similar, can you see if
nouveau works if you add 'Option "randr12" "off"' to
the device section of
xorg.conf, then run it after the blob (similar to how you say you can get nv to
work)?

If this works, keeping randr12 disabled in xorg.conf, register dumps running
nouveau before (black screen) and after the blob (working) would help. Make
them by doing:

git clone git://people.freedesktop.org/~stuart/radeontool
make
./radeontool regs > logfile


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--- Comment #5 from Henrik S?rensen <henrik.sorensen at gmail.com> 
2008-08-19 03:39:55 PST ---
nv after the blob does have working VTs, did a bunch switches back and forth
just to make sure it worked perfectly. 

Randr12-less nouveau gives me a black display too. If I load the blob after
nouveau, X gives a picture as normal, but the VTs are either black, or has
corruption (red spaced artefacts).

I'll do an mmiotrace of the blob starting x and switching back to a VT.


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--- Comment #6 from Henrik S?rensen <henrik.sorensen at gmail.com> 
2008-08-19 04:11:29 PST ---
mmiotrace was too large to attach, it's a trace of x starting freshly from
boot, switch to text mode vt and x shutdown.

http://troldrik.dk/~cbaoth/7300gt-with-32w4000.mmiotrace.bz2 


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--- Comment #7 from Henrik S?rensen <henrik.sorensen at gmail.com> 
2008-08-19 06:45:00 PST ---
Created an attachment (id=18379)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=18379)
X.org.log from nv driver started after nvidia blob has run


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--- Comment #8 from Henrik S?rensen <henrik.sorensen at gmail.com> 
2008-08-19 06:46:10 PST ---
Created an attachment (id=18380)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=18380)
radeontool regs dump with randr12 disabled


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--- Comment #9 from Henrik S?rensen <henrik.sorensen at gmail.com> 
2008-08-19 06:46:38 PST ---
Created an attachment (id=18381)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=18381)
radeontool regs dump with nv working


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--- Comment #10 from Henrik S?rensen <henrik.sorensen at gmail.com> 
2008-08-19 06:52:00 PST ---
Created an attachment (id=18382)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=18382)
radeontool regs dump with randr12 enabled


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--- Comment #11 from Henrik S?rensen <henrik.sorensen at gmail.com> 
2008-08-19 09:54:09 PST ---
Created an attachment (id=18387)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=18387)
radeontool regs dump with randr12 disabled attempt 2


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--- Comment #12 from Henrik S?rensen <henrik.sorensen at gmail.com> 
2008-08-20 03:55:03 PST ---
Created an attachment (id=18406)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=18406)
radeontool regs dump with randr12 disabled attempt 3 (pure git)


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--- Comment #13 from Henrik S?rensen <henrik.sorensen at gmail.com> 
2008-08-20 03:55:43 PST ---
Created an attachment (id=18407)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=18407)
radeontool regs dump with randr12 disabled attempt 3 (pure git) after running a
chvt 7


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--- Comment #14 from Stuart Bennett <sb476 at cam.ac.uk>  2009-03-11
18:45:31 PST ---
I'd be interested to see if anything has changed here (either in non-randr12
or
randr12 mode), if you have time / inclination still


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Suger <suger at p2pfr.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |suger at p2pfr.com




--- Comment #15 from Suger <suger at p2pfr.com>  2009-04-09 16:03:47 PST
---
I have an exactly similar problem, even if I'm not using a 7300gt but a
PT900AE. Problem remains with a 04/10/2009 git clone. I'm running FreeBSD
amd64


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

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

--- Comment #16 from Ilia Mirkin <imirkin at alum.mit.edu> ---
It appears that this bug report has laid dormant for quite a while. Sorry we
haven't gotten to it. Since we fix bugs all the time, chances are pretty
good
that your issue has been fixed with the latest software. Please give it a shot.
(Linux kernel 3.10.7, xf86-video-nouveau 1.0.9, mesa 9.1.6, or their git
versions.) If upgrading to the latest isn't an option for you, your
distro's
bugzilla is probably the right destination for your bug report.

In an effort to clean up our bug list, we're pre-emptively closing all bugs
that haven't seen updates since 2011. If the original issue remains, please
make sure to provide fresh info, see http://nouveau.freedesktop.org/wiki/Bugs/
for what we need to see, and re-open this one.

Thanks,

The Nouveau Team

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