The NVnews forums pointed me toward it being a powermizer problem. DIsabling it by setting it to "Prefer Maximum Performance" avoids this issue. It doesn't "stick" on reboot without setting something in xorg.conf. I've added this line but haven't had a chance to test it yet.
Option "RegistryDwords" "PowerMizerEnable=0x0" http://www.nvnews.net/vbulletin/showthread.php?p=2196545#post2196545 -- nvidia GT 240 has frequent hard locks https://bugs.launchpad.net/bugs/526857 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers 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