Renzo, I'm surprised with your report as in Natty the bug was fixed for me and I didn't have to use the nomodeset option. In Natty I have the following packages:
$ dpkg -l | grep -i xserver-xorg-video-ati ii xserver-xorg-video-ati 1:6.14.0-0ubuntu4.1 X.Org X server -- AMD/ATI display driver wrapper $ dpkg -l | grep -i xserver-xorg-core ii xserver-xorg-core 2:1.10.1-1ubuntu1.2 Xorg X server - core server Which versions do you have in Oneiric Beta 1? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/619365 Title: Screen corruption when X starts To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/619365/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs