Nouveau - Oct 2014 - [Bug 85444] New: [NV46] Heavy corruption, no hardfreeze, back to console and libexa.so segfault

https://bugs.freedesktop.org/show_bug.cgi?id=85444

            Bug ID: 85444
           Summary: [NV46] Heavy corruption, no hardfreeze, back to
                    console and libexa.so segfault
           Product: xorg
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: jesus.guerrero.botella at gmail.com
        QA Contact: xorg-team at lists.x.org

Created attachment 108396
  --> https://bugs.freedesktop.org/attachment.cgi?id=108396&action=edit
Screenshot

Hello.

I am trying to use the nouveau driver in an Aspire 9420, which is shipped with
a go7300 nvidia card. The lspci line is this:

01:00.0 VGA compatible controller: NVIDIA Corporation G72M [Quadro NVS
110M/GeForce Go 7300] (rev a1)

I am using the following software:
* gentoo x86_64
* kernel 3.17.1 from kernel.org, no patches
* no fb driver enabled, other than what the nouveau drm stack enables
automatically as deps
* no compositor, no xorg.conf
* libdrm, xf86-video-nouveau and mesa from git as of today (oct 25, 2014)
* xorg-server 1.16.1

When I boot my machine I can see the fb coming up, and the mode is set ok (with
tiny characters and such). When startx takes into scene, then the screen
becomes a pile of garbage. The laptop is not hard-frozen however. Most times,
after like a minute or two I am taken back to the console (not always though).
In any case, the computer is responsive. I can control+alt+del it even when the
console remains garbled. Because of this, I was able to easily save the X log
and the dmesg output, which I attach along with a photo of the corrupted
screen.

I have tried rebuilding everything many times, in the hope that any ABI issues
went away, but no change.

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--- Comment #1 from Jes?s Guerrero Botella <jesus.guerrero.botella at
gmail.com> ---
Created attachment 108397
  --> https://bugs.freedesktop.org/attachment.cgi?id=108397&action=edit
dmesg output

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--- Comment #2 from Jes?s Guerrero Botella <jesus.guerrero.botella at
gmail.com> ---
Created attachment 108398
  --> https://bugs.freedesktop.org/attachment.cgi?id=108398&action=edit
X log

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Jes?s Guerrero Botella <jesus.guerrero.botella at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #108396|0                           |1
        is obsolete|                            |

--- Comment #3 from Jes?s Guerrero Botella <jesus.guerrero.botella at
gmail.com> ---
Created attachment 108399
  --> https://bugs.freedesktop.org/attachment.cgi?id=108399&action=edit
Screenshot

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--- Comment #4 from Jesús Guerrero Botella <jesus.guerrero.botella at
gmail.com> ---
I found that if I compile this statically into my kernel it seems to work.
Haven't done any extensive testing though.

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

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

--- Comment #5 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/141.

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