Please try the -ati/-radeon packages from my PPA https://launchpad.net/~tormodvolden/+archive/ppa (xserver-xorg-video-ati - 1:6.12.1.99+git20090327.f061308e-0ubuntu0tormod)
Please try the -ati/-radeon packages from my PPA https:/ /launchpad. net/~tormodvold en/+archive/ ppa (xserver- xorg-video- ati - 1:6.12. 1.99+git2009032 7.f061308e- 0ubuntu0tormod)