Nouveau - Dec 2017 - [Bug 104156] New: NVIDIA Corporation G96 [GeForce 9500 GT] (rev a1) issue finding GPIO

https://bugs.freedesktop.org/show_bug.cgi?id=104156

            Bug ID: 104156
           Summary: NVIDIA Corporation G96 [GeForce 9500 GT] (rev a1)
                    issue finding GPIO
           Product: xorg
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: agent.xp22 at googlemail.com
        QA Contact: xorg-team at lists.x.org

journalctl -b -p err
disp: conn 01:0130: func 08 lookup failed, -2

Sourced it to here:
http://elixir.free-electrons.com/linux/latest/source/drivers/gpu/drm/nouveau/nvkm/engine/disp/conn.c#L124

Related issues:
https://unix.stackexchange.com/questions/219616/what-does-nouveaus-func-08-lookup-failed-2-mean


Kernel driver in use: nouveau

Name            : xf86-video-nouveau
Version         : 1.0.15-2

booted with kernel params: systemd.log_level=debug log_buf_len=1M
systemd.log_target=kmsg printk.devkmsg=on

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--- Comment #1 from Jonathan <agent.xp22 at googlemail.com> ---
Created attachment 136021
  --> https://bugs.freedesktop.org/attachment.cgi?id=136021&action=edit
kernel log output with boot parameters

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--- Comment #2 from Ben Skeggs <skeggsb at gmail.com> ---
Can you attach your VBIOS image?  It'll be available under
/sys/kernel/debug/dri/0/vbios.rom while nouveau is loaded.

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--- Comment #3 from Ilia Mirkin <imirkin at alum.mit.edu> ---
IIRC I had the same issue with my G96. Should be in the vbios repo.

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--- Comment #4 from Jonathan <agent.xp22 at googlemail.com> ---
Created attachment 136086
  --> https://bugs.freedesktop.org/attachment.cgi?id=136086&action=edit
vbios.rom

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--- Comment #5 from Jonathan <agent.xp22 at googlemail.com> ---
Created attachment 136087
  --> https://bugs.freedesktop.org/attachment.cgi?id=136087&action=edit
/sys/kernel/debug/dri/0/vbios.rom

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--- Comment #6 from Jonathan <agent.xp22 at googlemail.com> ---
(In reply to Ilia Mirkin from comment #3)
> IIRC I had the same issue with my G96. Should be in the vbios repo.
File has been attached. (twice by mistake)

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--- Comment #7 from Ben Skeggs <skeggsb at gmail.com> ---
(In reply to Jonathan from comment #6)
> (In reply to Ilia Mirkin from comment #3)
> > IIRC I had the same issue with my G96. Should be in the vbios repo.
> 
> File has been attached. (twice by mistake)
Yeah, as far as I can tell from that, we're not doing anything wrong here. 
Your VBIOS' connector table points to a GPIO table entry that doesn't
exist.

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--- Comment #8 from Jonathan <agent.xp22 at googlemail.com> ---
Ok good. At least we know what the issue is.

I am not familiar with the Video Bios (VBIOS). Does this suggest that there is
something wrong with the firmware on the video card? It would be good to get
the version of my vbios so that I can find vbios updates. 

Did you see a version? What are you using to access the vbios rom?

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

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

--- Comment #9 from Martin Peres <martin.peres at free.fr> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance:
https://gitlab.freedesktop.org/xorg/driver/xf86-video-nouveau/issues/388.

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