Bug 56610 - ivb HD 4000 screen corruption with mesa 9.0 and master a7c5be098aee3a8228cbd95558bac29cb7ff6a3d (30/10/2012)
Summary: ivb HD 4000 screen corruption with mesa 9.0 and master a7c5be098aee3a8228cbd9...
Status: RESOLVED NOTOURBUG
Alias: None
Product: Mesa
Classification: Unclassified
Component: Drivers/DRI/i965 (show other bugs)
Version: 9.0
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Ian Romanick
QA Contact:
URL:
Whiteboard:
Keywords:
: 55845 (view as bug list)
Depends on:
Blocks:
 
Reported: 2012-10-31 11:09 UTC by Enrico Tagliavini
Modified: 2012-11-22 08:18 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

Attachments

Description Enrico Tagliavini 2012-10-31 11:09:20 UTC 
With mesa 9.0 the top of the screen is corrupted randomly. It comes and goes as the surfaces are refreshed. For a screenshot see bug #55845"Screen Corruption" attachment. Other components I tried: kernel 3.6.4 3.7-rc3 and intel-drm-nightly of 31/10/2012; libdrm 2.4.39 ; xorg 1.12.2 ; video-intel 2.20.12 (both using UXA and SNA).

Downgrading to mesa 8.0.4 solve the issue, so this is a regression.
Comment 1 Enrico Tagliavini 2012-10-31 16:54:16 UTC 
I forgotten an important point: how to reproduce.

For me is fairly easy. I use KDE with composite enabled. Within 5 minutes (using the desktop, not idling) it will happen. At the moment I use KDE 4.8.5. I always have firefox using all the screen except some centimeters on the right where I have conky, and of course the bottom panel.
Comment 2 Stefano Avallone 2012-10-31 17:02:49 UTC 
It seems this is a bug in kwin and it has been fixed. I was affected by this bug, too, but my distribution (Arch Linux) picked this commit (in the 4.9 branch):

http://quickgit.kde.org/index.php?p=kde-workspace.git&a=commit&h=6cf057777555a5d0c834de3a0165a62916cf3b40

which fixed the bug for me.
Comment 3 Enrico Tagliavini 2012-11-01 17:47:33 UTC 
(In reply to comment #2)
> It seems this is a bug in kwin and it has been fixed. I was affected by this
> bug, too, but my distribution (Arch Linux) picked this commit (in the 4.9
> branch):
> 
> http://quickgit.kde.org/index.php?p=kde-workspace.
> git&a=commit&h=6cf057777555a5d0c834de3a0165a62916cf3b40
> 
> which fixed the bug for me.

Thank you very much. Seems to work here too.
Comment 4 Chris Wilson 2012-11-22 08:18:01 UTC 
*** Bug 55845 has been marked as a duplicate of this bug. ***

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