Are you using the Nvidia proprietary drivers? If you're not sure, then please attach your /var/log/Xorg.0.log. If you are, then that is a will known and much reported bug with the Nvidia driver
Are you using the Nvidia proprietary drivers? If you're not sure, then please attach your /var/log/ Xorg.0. log. If you are, then that is a will known and much reported bug with the Nvidia driver