Could you please try both: (a) An older version of the nvidia driver that is supported in Ubuntu 12.04: https://launchpad.net/ubuntu/+source/nvidia-graphics-drivers https://launchpad.net/ubuntu/+source/nvidia-graphics-drivers-updates
(b) Removing NVIDIA drivers completely (assuming the default fallback "nouveau" driver works for you) -- 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/1032187 Title: Major OpenGL performance degradation over time To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/1032187/+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