Very similar for me with Acer V 15 Nitro with NVIDIA GTX 960M. When a display is plugged via HDMI black screen is present. When the GPU is set in prime settings (nvidia-settings) to Intel, everything works. Lightdm didn't help.
Ubuntu 16.04 LTS, driver 367.27, Ubuntu 4.4.0-28.47-generic 4.4.13 ** Attachment added: "lspci-vnvn.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1559576/+attachment/4699162/+files/lspci-vnvn.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1559576 Title: Ubuntu GNOME boots to black screen when using proprietary Nvidia drivers on a laptop with Optimus To manage notifications about this bug go to: https://bugs.launchpad.net/gdm/+bug/1559576/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs