Public bug reported:
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
** Affects: gdm3 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble third-party-packages
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https://bugs.launchpad.net/bugs/2128840
Title:
Automatic Login with gdm3 amd64 46.2-1ubuntu1~24.04.3 [335 kB] is
broken.
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