This is a duplicate of bug 326344: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/326344
There's a few workarounds listed there - I'm currently using the second one myself.
This is a duplicate of bug 326344: https:/ /bugs.launchpad .net/ubuntu/ +source/ xorg-server/ +bug/326344
There's a few workarounds listed there - I'm currently using the second one myself.