i had the same problem in ubuntu 18.04 after upgrading to nvidia- drivers-390.48, than i could not login even using nouveau after removing all nvidia driver.
GDM3 could not manage to boot properly but just installing lightdm and setting it to default let me login successfully (i did not remove gdm so it was not necessary to do so to fix it) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1705369 Title: Ubuntu 17.10 boots to black screen when using Nvidia drivers (on a desktop with an Intel GPU) Status in gdm3 package in Ubuntu: Confirmed Status in gnome-shell package in Ubuntu: Invalid Status in nvidia-graphics-drivers-375 package in Ubuntu: Won't Fix Status in nvidia-graphics-drivers-384 package in Ubuntu: Confirmed Bug description: Ubuntu 17.10 boots to black screen when using Nvidia drivers (on a desktop with an Intel GPU) WORKAROUNDS: * Disable integrated graphics/GPU in your BIOS. * Add 'nomodeset' to your kernel command line. ORIGINAL DESCRIPTION: This bug is very similar to https://bugs.launchpad.net/ubuntu-gnome/+bug/1559576 which is closed. I have been asked to open a new bug report. The issue is on Ubuntu 17.10 with gdm3 fully updated as of July 20, 2017. I upgraded to 17.10 from a freshly installed Ubuntu 17.04. - Lightdm works - Nouveau driver works - Nvidia driver 375.66 (proprietary) does not work - Nvidia driver 384.47 (open source) does not work (from https://launchpad.net/~graphics-drivers/+archive/ubuntu/ppa) - Nvidia drivers work with Ubuntu Gnome 17.04 I am using Nvidia GTX 1080 and Intel i7-4790K lsb_release -rd: Description: Ubuntu Artful Aardvark (development branch) Release: 17.10 apt-cache policy gnome-shell: gnome-shell: Installed: 3.24.2-0ubuntu7 Candidate: 3.24.2-0ubuntu7 Version table: *** 3.24.2-0ubuntu7 500 500 http://sa.archive.ubuntu.com/ubuntu artful/main amd64 Packages 100 /var/lib/dpkg/status uname -s -r -v -p -i -o: Linux 4.11.0-11-generic #16-Ubuntu SMP Wed Jul 12 20:40:19 UTC 2017 x86_64 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1705369/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : email@example.com Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp