Hello, I found a solution and now everything works perfectly : nvidia- prime, bbswitch and gdm.
http://forum.ubuntu-fr.org/viewtopic.php?id=1557871 I will translate the whole procedure asap. kernel > 3.13.0-24-generic nvidia-prime > 0.6.2 bbswitch-dkms > 0.7-2ubuntu1 gdm > 3.10.0.1-0ubuntu4~trusty2 nvidia > 331.67-0ubuntu1~xedgers14.04.2 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1283439 Title: Nvidia video output doesn't work on nvidia-prime (Optimus laptop) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1283439/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
