I can confirm this bug, will send an update if I find a workaround, there is another bug reported same problem https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/254840
I can confirm this bug, will send an update if I find a workaround, there is another bug reported same problem https:/ /bugs.launchpad .net/ubuntu/ +source/ xorg-server/ +bug/254840