As I am using Gentoo Linux I have no idea which version of the driver is in Ubuntu, but after having the same problems for a long time with many 30x.xx nvidia driver versions, I tried an upgrade from Nvidia driver 290.10 (which still worked fine) to 304.60 - which seems to work fine again, I am using that version for several weeks now without any problems.
nVidia Corporation NV44 [GeForce 7100 GS] (rev a1) driver 304.60 on Gentoo Linux / i686 (32 bit) / Kernel 3.6.1 -- 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/882710 Title: [NVIDIA] Monitor(s) black out and session freezes. "NVRM: GPU at 0000:01:00.0 has fallen off the bus." To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/882710/+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