As I had the same problems I tried to modify my xorg.conf. What helps was to disable DRI2 and enable DRI. My working xorg.conf for my radeon 7000 (M6LY):
Section "Device" Identifier "Configured Video Device" Option "AGPMode" "4" Option "AGPSize" "32" Option "DRI" "true" Option "DRI2" "false" EndSection RenderAccel is XAA per default. Working means that notifications and compiz work as expected. -- Notification and similar dialogs are displaying corrupted after update on Karmic https://bugs.launchpad.net/bugs/416001 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