Bug 27578

Summary: [845G] Occasional per-window corruption
Product: xorg Reporter: aguertin+freedesktop
Component: Driver/intelAssignee: Default DRI bug account <dri-devel>
Status: RESOLVED DUPLICATE QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium    
Version: unspecified   
Hardware: x86 (IA32)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
Rhythmbox displaying the corruption
none
Desktop displaying the corruption none

Description aguertin+freedesktop 2010-04-10 15:25:30 UTC 
Created attachment 34881 [details]
Rhythmbox displaying the corruption

kernel 2.6.33.1
xorg-server 1.7.6
xf86-video-intel from git
libdrm 2.4.19
hardware 845G

For a long time, I've gotten corruption in various windows. This is seemingly random, and uncommon but frequent enough that I see it multiple times a day. If memory serves, I didn't see this in UMS, but I don't know if it started as soon as I started using KMS or if it was sometime after that. It has persisted through at least several kernel and driver versions.

The corruption, as far as I can tell, takes the form of pixels being rearranged. I never see the random colors expected from invalid memory getting used.

By far the most common apps that get corrupted are Firefox and Thunderbird--but those are also by far my most used apps, so I'm not sure if they're actually more likely to get corrupted.

When something causes the app to repaint, the corruption will vanish. This makes it hard to capture a screenshot of firefox or thunderbird, because they repaint when I take a screenshot.
Comment 1 aguertin+freedesktop 2010-04-10 15:38:53 UTC 
Created attachment 34882 [details]
Desktop displaying the corruption

This is the gnome desktop displaying what I believe is the same corruption. There should be a single icon in the top left.
Comment 2 Eugeni Dodonov 2011-09-08 15:56:33 UTC 
This issue is affecting a hardware component which is not being actively worked on anymore.

Moving the assignee to the dri-devel list as contact, to give this issue a better coverage.
Comment 3 Chris Wilson 2012-07-21 18:09:09 UTC 

*** This bug has been marked as a duplicate of bug 26345 ***

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