Random image is rendered when I am doing normal work (like reading documents, web surfing, etc) with gnome 3 running. I am using ubuntu 11.10 64bit version. When I run gnome 2 (ubuntu classic without effects) no artifacts are there. When running gnome 2 (with compiz enabled) I am getting similar effects. Guess this to be related to OpenGL Mesa package. I am having a Intel 82945G/GZ graphics card. Mine is a fresh installation of ubuntu 11.10. My system is up to date.
Output of certain commands that may be helpful:
lspci:
00:02.0 VGA compatible controller: Intel Corporation 82945G/GZ Integrated Graphics Controller (rev 02)
dmesg | grep drm:
[ 19.370851] [drm] Initialized drm 1.1.0 20060810
[ 19.553129] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[ 19.553133] [drm] Driver supports precise vblank timestamp query.
[ 19.598520] [drm] initialized overlay support
[ 19.767735] fbcon: inteldrmfb (fb0) is primary device
[ 19.767915] fb0: inteldrmfb frame buffer device
[ 19.767917] drm: registered panic notifier
[ 19.767949] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
Things are going fine when there is no compiz (or gnome3). I guess it is because of OpenGL driver (mesa) as running gnome3 (mutter) also has the same effect.
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