screen not updated for playing videos when composite is enabled

[Matt Wheeler]

When I have beryl or compiz enabled, any video playing in totem, mplayer, VLC, or their mozilla extensions does not get drawn on the screen.
I can occasionally see a single frame of the video, then it goes black again.
Sound works fine, and I can see the progress bar moving.
Video works fine when using Metacity as the window manager.

Video card: ATi Mobility Radeon 9600
Open source drivers

[Peter Würtz (pwuertz)]

I can confirm this bug on all systems I have seen so far using an Intel video chipset. Seems the only working driver is the nvidia driver.