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):
Steps to Reproduce:
1. Move mouse around between windows.
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]
Created attachment 519899 [details]
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]
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