It is not supposed to reboot, you should do that manually. Actually, you don't have to reboot, logoff/logon is enough. If you would like to automate the process, refer to prime-indicator package. Instalation guide can be found on the following link (valid on March 19, 2015): http://www.webupd8.org/2014/01/prime-indicator-lets-you-quickly-switch.html .
** Changed in: nvidia-prime (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1389199 Title: NVIDIA-340. 46 and NVIDIA 331.38 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1389199/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs