Ubuntu
xserver-xorg-video-ati package

  1. Bug #122979
  2. Comment #1

Comment 1 for bug 122979

Revision history for this message
Sitsofe Wheeler (sitsofe) wrote : Re: Video playback gets buggy when Compiz is on

Punting from compiz -> xorg (this is a video driver issue with AIGLX).

felipelavinz:
Thank you for your bug report.

This happens because the default xv acceleration is no longer available when using AIGLX (because everything is being drawn through textures on the 3D unit). I haven't seen this problem on NVIDIA cards using the more recent binary drivers (they seem to still have an accelerated xv) but the open source ATI drivers have a similar problem (very buggy xv when using AIGLX) as do the Intel drivers. However my understanding is that the latest development Intel drivers can support xv that renders using textured video rather than an overlay (http://intellinuxgraphics.org/documentation.html ). I vaguely remember hearing that most video playing software does not actually give you the option of switching between xv interfaces and thus always defaults to the overlay xv...

This bug needs to be narrowed down to a single graphics card driver to stand a chance of being resolved. This is also an issue if desktop effects are going to be enabled by default in Gutsy.