I'm having the same problem running 64 bit Ubuntu 14.04 nvidia 331. Ctrl-Alt-F1 then Ctrl-Alt-F7 restores the mouse.
uname -a: Linux xps-L502X 3.13.0-45-generic #74-Ubuntu SMP Tue Jan 13 19:36:28 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux http://pastebin.com/pCabdnnP I'm downloading vivid-desktop-amd64.iso and will give it a try. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1277245 Title: nvidia prime causing mouse and screen to freeze To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1277245/+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