Appears to be a modesetting issue, this is now being handled by the kernel so reassigning to linux.
As a workaround, you could try disabling KMS - boot with radeon.modeset=0, which should restore karmic-level functionality by using the old X user modesetting stuff. ** Package changed: xserver-xorg-video-ati (Ubuntu) => linux (Ubuntu) ** Changed in: linux (Ubuntu) Status: Confirmed => New -- ATI Radeon X1300/X1550 Series Video Card Problem https://bugs.launchpad.net/bugs/561983 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs