Public bug reported: The driver for the intel part of xorg.conf should be modesetting instead of intel, see also: https://askubuntu.com/questions/580693/black-screen- when-in-nvidia-mode-after-updating-to-kernel-3-13-0-45
>From what I can see this is set here: http://bazaar.launchpad.net /~ubuntu-branches/ubuntu/trusty/ubuntu-drivers-common/trusty- proposed/view/head:/share/hybrid/gpu-manager.c#L1588 I am seeing this on a trusty system with nvidia-346 driver on both 3.16 and 3.13 kernels. The end result of doing this worng is that system boots up with black screen. As a workaround I have commented out gpu-manager in /etc/init/gpu- manager.conf (when starting lightdm) and in /sbin/prime-switch (when stopping lightdm). ** Affects: ubuntu-drivers-common (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1419507 Title: gpu-manager writes wrong driver in xorg.conf fro nvidia-prime To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-drivers-common/+bug/1419507/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs