Workaround was to install the proprietary driver. I'm shure we want avoid this for the Ubuntu 14.04 LTS (Trusty Tahr) release. Failsafe graphics mode should be an option.
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-nouveau in Ubuntu. https://bugs.launchpad.net/bugs/1198728 Title: GeForce 6150SE displaying artifacts To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1198728/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp

