WORKAROUND: Turning "Visual Effects" on (from "None" to "Normal") in the Appearance Preferences seems to get rid of this problem.
By the way, I am using the radeon drivers. This may be the source of the problem. -- some applications (QT based??) cause display corruption in gnome https://bugs.launchpad.net/bugs/404076 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
