Ubuntu
xserver-xorg-video-ati package

  1. Bug #150058
  2. Comment #17

Comment 17 for bug 150058

Revision history for this message
Travis Watkins (amaranth) wrote : Re: defects in some parts of the screen

Your screen resolution is larger than the maximum texture size your video card can create. Thus it cannot extend your panels, desktop, or large windows along the entire screen.