Public bug reported:
Binary package hint: xserver-xorg-video-radeon
Video playbacks fails on the included radeon driver, when compiz is enabled.
This is caused by the the XAA accelerator, which is used when compiz is
enabled. That accelerator does not support a mechanism to migrate pixmaps from
system ram to vram [1], which makes video playback fail with the following
errors:
X11 error: BadAlloc (insufficient resources for operation)
Using the new EXA accelerator instead of the old XAA one [2], makes
video playback possible. This accelerator should be the default one when
using the radeon driver, as having to disable 3D effects when you want
to play video is HIGHLY annoying, especially when Compiz is enabled by
default.
The Xorg option to force EXA:
Option "AccelMethod" "EXA"
System details:
Xorg window system 1:7.4~2ubuntu1
RADEON display driver 1:6.9.0+git20080826.a3cc1d7a-2ubuntu2
Sapphire X1650 Pro
Ubuntu Intreprid, fully updated
** Affects: xserver-xorg-video-ati (Ubuntu)
Importance: Undecided
Status: New
** Tags: compiz exa radeon video xaa
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Video playback failes with compiz enabled
https://bugs.launchpad.net/bugs/269357
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