Solved by installing: Sudo apt-get install nvidia-331-uvm
** Changed in: nvidia-prime (Ubuntu) Status: New => Incomplete ** Changed in: nvidia-prime (Ubuntu) Status: Incomplete => Fix Released -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-prime in Ubuntu. https://bugs.launchpad.net/bugs/1368493 Title: Prime-select query reports unknown on the latest kernel Status in “nvidia-prime” package in Ubuntu: Fix Released Bug description: I tried the kernel 3.16-14 and noticed that i recive unknown instead of intel or nvidia, 3.16-12 seems to work fine. When using grub it tells me that i'm using 3.12 but when I run the command i get: 3.16.0-12-generic #18-Ubuntu nvidia-prime: Installed: 0.6.6 Candidate: 0.6.6 Version table: *** 0.6.6 0 500 http://us.archive.ubuntu.com/ubuntu/ utopic/main amd64 Packages 100 /var/lib/dpkg/status Description: Ubuntu Utopic Unicorn (development branch) Release: 14.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1368493/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp