Experience a similar issue as well, using a Quadro FX 3800M with driver 304.*, 310.* and 313.* in 12.10 and 13.04. (Dell Precision M6500 with a core i7)
Very frequent random lockup's which crashes both unity and gnome-shell, switching between tty1 and tty7 sometimes resolves this issue, but complete lockup's occur as well, ruining everything you've been working on. It seems to be happening more when the GPU is under load. Example of lockup which happened watching a flash based video in gnome-shell, it resolved itself by waiting for a couple of minutes, switching to tty1 didn't work this time. The machine was completely unresponsive to input, but the sound of the video continued just fine, it did however manage to show a moving mouse cursor at times before locking up completely again. The screen was showing a frozen image of the desktop at the beginning of the issue, but changed to the start image of gnome-shell (the noise based background) after a while. Jun 6 14:27:10 Machine kernel: [ 3290.175999] NVRM: GPU at 0000:01:00: GPU-9e2ddf6e-47c2-4331-d30f-b7adedcd90fc Jun 6 14:27:10 Machine kernel: [ 3290.176007] NVRM: Xid (0000:01:00): 13, 0003 00000000 00000000 00000000 00000000 00000001 Jun 6 14:28:22 Machine kernel: [ 3362.260127] NVRM: Xid (0000:01:00): 13, 0003 00000000 00000000 00000000 00000000 00000001 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers in Ubuntu. https://bugs.launchpad.net/bugs/1132121 Title: Nvidia driver garbles screen and lets the computer freeze completely To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/1132121/+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