Comment 43 for bug 151674

the problem is not only on compiz, it's more about using the composite extension in Xorg
and now that Unity as gone gpu accelerated and that it's just bad without it, and that gnome-shell also requires gpu acceleration, this bug needs to be fixed.

we are in 2012 there is still no good video playback when gpu accelleration is on, that's really bad for linux.