OK. I still can't find an easy explanation for the black screen. One issue that might be related is the kernel complaining that:
kernel: EDID block 0 is all zeroes This means there is a problem in the monitor's display cable or the monitor has buggy firmware. It *might* cause a black screen or it might not. Because it only prevents the monitor from reporting what modes it supports. Without that information you should still have access to basic standard display modes. Something worth trying is to add this to /etc/environment: MUTTER_DEBUG_FORCE_KMS_MODE=simple and then reboot. -- 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/2083772 Title: System gets blank/black screen after login Status in gnome-shell package in Ubuntu: Incomplete Bug description: recently when logging in to Ubuntu desktop with GDM the screen appears black only with cursor appearing as it is, rebooting fixes the problem but only temporary as it occurs randomly initial guess was that this occurs due to the hack suggested at https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2077216/comments/4 for issue https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2077216 but even after disabling the hack(https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2077216/comments/15) this occurs. This is common to both x11 & wayland sessions. ProblemType: Bug DistroRelease: Ubuntu 24.04 Package: mutter (not installed) ProcVersionSignature: Ubuntu 6.8.0-45.45-generic 6.8.12 Uname: Linux 6.8.0-45-generic x86_64 ApportVersion: 2.28.1-0ubuntu3.1 Architecture: amd64 CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Sun Oct 6 19:31:01 2024 InstallationDate: Installed on 2024-08-15 (52 days ago) InstallationMedia: Ubuntu 24.04.1 LTS "Noble Numbat" - Release amd64 (20240815) SourcePackage: mutter UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/2083772/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
