Please collect a full backtrace - see http://wiki.ubuntu.com/X/Backtracing for directions.
Also, you need to attach your Xorg.0.log and the output of `lspci -vvnn` whenever reporting Xorg bugs. An easy way to do this is to run `apport-collect 350548` from the affected machine.
Please collect a full backtrace - see http:// wiki.ubuntu. com/X/Backtraci ng for directions.
Also, you need to attach your Xorg.0.log and the output of `lspci -vvnn` whenever reporting Xorg bugs. An easy way to do this is to run `apport-collect 350548` from the affected machine.