I have the same issues here uname -a :
Linux felix-G551JM 3.16.0-29-generic #39-Ubuntu SMP Mon Dec 15 22:27:29 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux lspci | ergrep -i "vga|3d" 00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06) 01:00.0 3D controller: NVIDIA Corporation GM107M [GeForce GTX 860M] (rev a2) cat /etc/lsb-release : DISTRIB_ID=Ubuntu DISTRIB_RELEASE=14.10 DISTRIB_CODENAME=utopic DISTRIB_DESCRIPTION="Ubuntu 14.10" nvidia-331 -- 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