yep, confirm the problem latest kernel install killed the switch (I think). I tried many things and nothing.... (black screen)
- update to nvidia346 - change alternatives manually (without prime) - desactivate an eventual "ghost display" - .... All changes I made & my config >> http://goo.gl/QIimU0 The nvidia card does not work, the black screen is not due to an unknown display >> can not log in background. I didn't try with lightdm to confirm last hypothesis. I will asap. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1288572 Title: Nvidia driver does not work in Ubuntu GNOME trusty "14.04" (Optimus laptop) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-shell/+bug/1288572/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs