This appears to be https://bugs.freedesktop.org/show_bug.cgi?id=22055
Setting Option "RenderAccel" "off" in xorg.conf fixes at least the osd and system monitor for me. ** Bug watch added: freedesktop.org Bugzilla #22055 https://bugs.freedesktop.org/show_bug.cgi?id=22055 -- 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