Description of problem: In gnome3, quite often when changing focus between windows, (typically) triangular shaped rendering artefacts flicker by, see attached screenshots. Version-Release number of selected component (if applicable): xorg-x11-drv-nouveau-0.0.16-24.20110324git8378443.fc15.x86_64 How reproducible: Very often Steps to Reproduce: 1. Move mouse around between windows. Additional info: I have dual screens and lspci reports my card as follows: 01:00.0 VGA compatible controller: nVidia Corporation G70 [GeForce 7800 GTX] (rev a1)
Created attachment 519898 [details] screenshot
Created attachment 519899 [details] screenshot
Oh, pretty. Haven't seen this kind of misrendering for a while. 1. Do you see any messages in dmesg from nouveau after one of these artifacts occur? 2. If you boot with "nouveau.vram_pushbuf=1" in your kernel options, does it still happen?
Nothing too obvious in dmesg (attached), the only somewhat fishy line is [11110.613997] [drm:drm_debugfs_create_files] *ERROR* Cannot create /sys/kernel/debug/dri/!ǣ`/6 And the problem still happen after booting with nouveau.vram_pushbuf=1
Created attachment 520652 [details] dmesg
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