Public bug reported: Hybrid laptop with an NVidia 960M video card boots to a black SDDM screen when the NVidia card enabled (using the NVidia 384 and 390.xx drivers). Nouveau drivers fail to boot.
Switching to Intel drivers (sudo prime-select intel), SDDM loads/runs just fine. Removing the "quiet" option from grub boot shows Simple Display Manager starting without error when NVidia is enabled. Unsure how to provide additional useful information. Ctrl-Alt-f1, logging in via the terminal, and startx enables normal desktop use. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: sddm 0.17.0-1ubuntu2 ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10 Uname: Linux 4.15.0-13-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.9-0ubuntu4 Architecture: amd64 CurrentDesktop: KDE Date: Tue Apr 10 19:15:16 2018 InstallationDate: Installed on 2018-03-14 (27 days ago) InstallationMedia: Kubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180312) SourcePackage: sddm UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: sddm (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic third-party-packages -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1762885 Title: SDDM fails to start on laptops modern NVidia cards To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sddm/+bug/1762885/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs