We have the same problem on the platfrom runs with Ubuntu 12.04.2 with quantal backported.
I reviewed the raring patch from https://launchpad.net/ubuntu/+source/xorg-server/2:1.13.2-0ubuntu3 and tried to backport it to 12.04.2. It looks work fine on our platfrom.
We have the same problem on the platfrom runs with Ubuntu 12.04.2 with quantal backported.
I reviewed the raring patch from https:/ /launchpad. net/ubuntu/ +source/ xorg-server/ 2:1.13. 2-0ubuntu3 and tried to backport it to 12.04.2.
It looks work fine on our platfrom.