I was constantly having this same bug: oneiric would crash and the logs would state that the GPU has fallen off the bus. What I did as a workaround was to issue the following command:
nvidia-smi -pm 1 What this does is it turns on the nvidia's driver persistence mode. However, you have to do this every time the machine is rebooted. I have put this command on my rc.d. My theory is that the nvidia driver deactivates itself for some reason, either to save power or to switch performance modes. When this happens and X is running, there is temporarily no hardware associated with the PCI bus. X tries to write to it, finds no driver, and then it freezes. -- 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/733374 Title: X freeze, nvidia-current, Ubuntu 11.04 Maverick GeForce 9600GT To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/733374/+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
