Here's an idea: Please reinstall the Nvidia driver, reproduce the bug, then revert to nouveau again.
Assuming the problem with the Nvidia driver was the _previous_ boot: journalctl -b-1 > prevboot.txt and then attach the file prevboot.txt ** Summary changed: - [nvidia] Login screen doesn't show up after installing the Nvidia driver + [nvidia] Login screen doesn't show up after installing the Nvidia driver, on a desktop with only an Nvidia GPU -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-435 in Ubuntu. https://bugs.launchpad.net/bugs/1856507 Title: [nvidia] Login screen doesn't show up after installing the Nvidia driver, on a desktop with only an Nvidia GPU Status in gdm3 package in Ubuntu: Incomplete Status in nvidia-graphics-drivers-435 package in Ubuntu: Incomplete Bug description: Attempting to boot after installing nvidia-driver-435, the login screen does not show up. I tried editing /etc/gdm3/custom.conf and uncommenting the line: #WaylandEnable=false And then rebooting. No apparent change. Still no login screen. Screenshot attached. ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: nvidia-driver-435 435.21-0ubuntu2 ProcVersionSignature: Ubuntu 5.3.0-24.26-generic 5.3.10 Uname: Linux 5.3.0-24-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.20.11-0ubuntu8.2 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Mon Dec 16 10:46:58 2019 InstallationDate: Installed on 2010-10-12 (3351 days ago) InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007) SourcePackage: nvidia-graphics-drivers-435 UpgradeStatus: Upgraded to eoan on 2019-10-23 (53 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1856507/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
