Created attachment 34881 [details]
Rhythmbox displaying the corruption
xf86-video-intel from git
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.
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.
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.
*** This bug has been marked as a duplicate of bug 26345 ***