I think this is a duplicate of bug #349229: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/349229
and
https://bugs.freedesktop.org/show_bug.cgi?id=38349
I think this is a duplicate of bug #349229: https:/ /bugs.launchpad .net/ubuntu/ +source/ xserver- xorg-video- ati/+bug/ 349229
and
https:/ /bugs.freedeskt op.org/ show_bug. cgi?id= 38349