I have same bug on my ibm t42 ati mobility 7500 32MB. Therefore i opened #437117 bugreport, which is a duplicate of this bug. It only appears with ati renderacceleration XAA not EXA. I use XAA because it has more performance with karmic koala...
** Attachment added: "notify-osd-ati.jpg" http://launchpadlibrarian.net/32725099/notify-osd-ati.jpg -- OSD showing corruption on ATI graphics https://bugs.launchpad.net/bugs/429295 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