I'm having the same problem. I also had another problem reported here: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/522554 Upon logging in again after that, hitting Enter doesn't seem to hang the system anymore.
-- Pressing Enter or using sudo command with NVidia driver hangs / reboots the system https://bugs.launchpad.net/bugs/519505 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-nv in ubuntu. _______________________________________________ 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