Hello, In my case, the person upgraded GDM and linux-firmware, then turned off his computer. At the next boot, he had a black screen.
When I checked the kernel logs, I saw issues with "amdgpu" and suspected a link with bug 2128883: I installed the previous version of linux-firmware and rebooted, but the black screen was still there. I then tried to downgrade GDM3 and its lib, but the previous version was no longer in the repo. Because I was in command line, I didn't try to download the previous version from LP, and instead, I removed the "Automatic Login" entries from "/etc/gdm3/custom.conf" and rebooted. This fixed the issue. The laptop owner never used the terminal, I don't see why MUTTER_DEBUG_FORCE_EGL_STREAM would be set to 1. If you think it is needed, I can ask to get access to the laptop again to reproduce the issue and get more logs. Hopefully the issue is a combination of "auto login" + specific HW or custom config, so it doesn't affect too many people. (Also, if I was not there, I'm sure this person would not have been able to report the issue here → what I mean is that maybe it affects more people that we think.) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2128840 Title: Automatic Login with gdm3 amd64 46.2-1ubuntu1~24.04.3 [335 kB] is broken. Status in linux package in Ubuntu: Invalid Status in mesa package in Ubuntu: Invalid Status in mutter package in Ubuntu: Invalid Bug description: The following updated packaged were offered: gdm3 gir1.2-gdm-1.0 libgdm1 Upon installing these updates and rebooting, the Desktop could not be reached. Black screen only. Subsequent restarts were not successful. Shutting down works when triggered from Oracle VirtualBox v7.1.12. Accessed Ubuntu's Recovery Console and removed the Automatic Login entries from /etc/gdm3/custom.conf and rebooted. Was able to reach the login screen and once logged in, was able to reach the Desktop. This was repeated several times without any issues. Conclusion is that Automatic Login with gdm3 amd64 46.2-1ubuntu1~24.04.3 is broken. In this case, disabling Automatic Login (Settings: System: Users) fixed the issue. ProblemType: Bug DistroRelease: Ubuntu 24.04 Package: gdm3 46.2-1ubuntu1~24.04.3 ProcVersionSignature: Ubuntu 6.8.0-85.85-generic 6.8.12 Uname: Linux 6.8.0-85-generic x86_64 ApportVersion: 2.28.1-0ubuntu3.8 Architecture: amd64 CasperMD5CheckMismatches: ./boot/grub/grub.cfg CasperMD5CheckResult: fail CurrentDesktop: ubuntu:GNOME Date: Fri Oct 17 14:15:13 2025 InstallationDate: Installed on 2024-05-16 (520 days ago) InstallationMedia: Ubuntu 22.04.4 LTS "Jammy Jellyfish" - Release amd64 (20240220) ProcEnviron: LANG=en_US.UTF-8 PATH=(custom, no user) SHELL=/bin/bash TERM=xterm-256color XDG_RUNTIME_DIR=<set> SourcePackage: gdm3 UpgradeStatus: Upgraded to noble on 2025-02-11 (248 days ago) mtime.conffile..etc.gdm3.custom.conf: 2025-10-17T12:52:53.032766 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2128840/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
