You have the nvidia driver installed but no xorg.conf for it, which is why the xserver autoloads -nv.
** Changed in: xserver-xorg-video-nv (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-nv in Ubuntu. https://bugs.launchpad.net/bugs/807968 Title: GLX module fails To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nv/+bug/807968/+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