I was using mesa/drm commit 062c98f4d9264f694ad348baff2babdddccc1ee4 (r6xx-r7xx-3d branch) for some time without problems. Test glxgears was working fine, just little flickering caused by lack of IRQ support. Then: commit 826f1f9c6fd976ff36594e272c0a391187ca0bd8 Author: Alex Deucher <alexdeucher@gmail.com> Date: Fri Jul 31 02:13:43 2009 -0400 r600: get updated pending age from cs ioctl REQUIRES AN UPDATED DRM introduced corruption to glxgears on my GPU. I documented that on first video. So I updated mesa/drm to commit ee88fe9981dc0120a088c3028caf9e506c95f1c4 but corruption is still here (just little different, see second video). Also updating mesa to git master doesn't help (third video, I think very similar to second one).
Videos: http://sirius.cs.put.poznan.pl/~inf80100/mesa/out-1.ogv http://sirius.cs.put.poznan.pl/~inf80100/mesa/out-2.ogv http://sirius.cs.put.poznan.pl/~inf80100/mesa/out-3.ogv Bugzilla has limit 1MB :/
The flickering has nothing to do with irq support.
Are you sure you're actually using the latest drm and mesa? I can't reproduce any regression with glxgears here.
Huh, I Linux world I've forgotten about thing called reboot. It seems reloading both: drm & radeon modules wasn't enought. Today I booted again and it works fine.
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