Hangs like this have been happeneing randomly for me, since the 12.04 release. Again, the hang is mostly screen freezes, except for mouse. Sometimes, it locks the keyboard out, as well. And I have to use Sys-rq to reboot.
Finally decided to report it. :) I have attached the output from that script. Might go and try the nvidia drivers, but support was awful for my card in previous releases. ** Attachment added: "Output from /usr/share/bug/xserver-xorg-core/script 3>&1" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/994306/+attachment/3436432/+files/debug.out -- 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/994306 Title: [7025, 7300 GS, 7900 GS] Intermittent GUI hangs in 12.04 To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/994306/+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