Rainer Wackerle, thank you for reporting this and helping make Ubuntu better.
To clarify, after the error popup, is there a crash file in /var/crash? ** Changed in: xorg (Ubuntu) Importance: Undecided => Medium ** Changed in: xorg (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1569230 Title: internal error report To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1569230/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp