Comment 9 for bug 776565

Yep, having the same problems here also, with a dual monitor set up. Works fine without compiz, but with compiz the screen gets corrupts. Symptoms including random garbage over monitors, to just a black screen where the background should be, and dragging windows leaves a trail of artifacts as if the background is not being rendered at all.

My graphics card chipset is ATI Radeon X800XT.