I am having this same problem on a 9200SE card. There's a whole forum topic on this: http://ubuntuforums.org/showthread.php?t=1308027
Simply disabling desktop effects has "solved" my problems (I get full desktop functionality but no effects). Also, editing xorg.conf to force XAA instead of EXA mode has worked to allow desktop effects, although performance is then very slow. I can provide information for my system if need be. I was attempting to file a new bug when launchpad directed me to this report. -- Desktop background becomes black when desktop effects are enabled on GNOME and KDE https://bugs.launchpad.net/bugs/462436 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