Nouveau - Oct 2009 - [Bug 24421] New: Commit 6c8d3e39b72abe897b08d9e90cae85e121863d2c causes colour corruption on 9800M

http://bugs.freedesktop.org/show_bug.cgi?id=24421

           Summary: Commit 6c8d3e39b72abe897b08d9e90cae85e121863d2c causes
                    colour corruption on 9800M
           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: tavianator at gmail.com
         QAContact: xorg-team at lists.x.org


Created an attachment (id=30223)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=30223)
Photograph of KDM exhibiting symptom

A recent update of xf86-video-nouveau caused colour corruption for me on an
nVidia 9800M.  I've attached an image of KDM showing the effect quite well. 
I
bisected the problem down to commit 6c8d3e39b72abe897b08d9e90cae85e121863d2c. 
My mode settings are 1920x1200x60, 24-bit depth, and KMS is enabled. 
xorg-server 1.6.3.901, GIT nouveau DRM.


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John Keeping <john.keeping at lineone.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |john.keeping at lineone.net




--- Comment #1 from John Keeping <john.keeping at lineone.net>  2009-10-09
11:53:13 PST ---
I'm seeing the same sort of corruption on a Quadro FX 2500M (G71), also
1920x1200x60, 24-bit and KMS. xorg-server-1.6.4 with mesa and libdrm from git.
I left xf86-video-nouveau as git master and bisected the nouveau-drm modules.
Commit c3a2669eeceda30e16573cdd807bdfed6dc51daf caused the problem for me,
regardless of the xf86-video-nouveau in use.


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--- Comment #2 from Thomas Hoernes <thomas.hoernes at gmx.at>  2009-10-11
01:17:37 PST ---
Same problem here with my GF6600GT (1680x1050, 24 bit). However, without KMS
enabled everything works fine.


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--- Comment #3 from Francisco Jerez <currojerez at riseup.net>  2009-10-11
11:11:29 PST ---
(In reply to comment #1)
> I'm seeing the same sort of corruption on a Quadro FX 2500M (G71), also
> 1920x1200x60, 24-bit and KMS. xorg-server-1.6.4 with mesa and libdrm from
git.
> I left xf86-video-nouveau as git master and bisected the nouveau-drm
modules.
> Commit c3a2669eeceda30e16573cdd807bdfed6dc51daf caused the problem for me,
> regardless of the xf86-video-nouveau in use.
> 
Could you confirm that reverting 6c8d3e39b72abe897b08d9e90cae85e121863d2c alone
fixes the problem?


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--- Comment #4 from John Keeping <john.keeping at lineone.net>  2009-10-12
02:26:48 PST ---
Yes, reverting 6c8d3e39b72abe897b08d9e90cae85e121863d2c in xf86-video-nouveau
fixes the problem for me (with the latest nouveau-drm).


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Francisco Jerez <currojerez at riseup.net> changed:

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




--- Comment #5 from Francisco Jerez <currojerez at riseup.net>  2009-10-12
18:11:04 PST ---
This should work now with current master, thanks!


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