Bug 24421 - Commit 6c8d3e39b72abe897b08d9e90cae85e121863d2c causes colour corruption on 9800M
Summary: Commit 6c8d3e39b72abe897b08d9e90cae85e121863d2c causes colour corruption on 9...
Status: RESOLVED FIXED
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/nouveau (show other bugs)
Version: git
Hardware: Other All
: medium normal
Assignee: Nouveau Project
QA Contact: Xorg Project Team
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2009-10-09 08:25 UTC by Tavian Barnes
Modified: 2009-10-12 18:11 UTC (History)
3 users (show)

See Also:
i915 platform:
i915 features:

Attachments
Photograph of KDM exhibiting symptom (93.10 KB, image/jpeg)
2009-10-09 08:25 UTC, Tavian Barnes 		no flags Details
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Description Tavian Barnes 2009-10-09 08:25:32 UTC 
Created attachment 30223 [details]
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.
Comment 1 John Keeping 2009-10-09 11:53:13 UTC 
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.
Comment 2 Thomas Hoernes 2009-10-11 01:17:37 UTC 
Same problem here with my GF6600GT (1680x1050, 24 bit). However, without KMS enabled everything works fine.
Comment 3 Francisco Jerez 2009-10-11 11:11:29 UTC 
(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?
Comment 4 John Keeping 2009-10-12 02:26:48 UTC 
Yes, reverting 6c8d3e39b72abe897b08d9e90cae85e121863d2c in xf86-video-nouveau fixes the problem for me (with the latest nouveau-drm).
Comment 5 Francisco Jerez 2009-10-12 18:11:04 UTC 
This should work now with current master, thanks!

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