Ubuntu
xserver-xorg-video-ati package

  1. Bug #444139
  2. Comment #11

Comment 11 for bug 444139

Revision history for this message
_dan_ (dan-void) wrote : Re: (Needs KMS) Background and full screen apps don't show up when Normal Visual Effects on (Radeon 7500)

Furthermore it does not only affect fullscreen apps, but also windows apps when there are 2 or 3 other windows open.
Its has the same behaviour as the "nvidia black window bug" from 1-2 years ago, plus the missing background.