Public bug reported:
GNOME lock and switch user buttons crashes the desktop when using
lightdm (X is killed when it tries to respawn in a loop eating 100% of
CPU).
Switched to gdm and didn't experienced the proble so i can confirm it's
related with lightdm or lightdm-gtk-greeter.
Saw a couple of similar bugs but they're very old, this is happening on
Ubuntu 25.04
I can provide coredump if helps.
ProblemType: Bug
DistroRelease: Ubuntu 25.04
Package: lightdm 1.32.0-6ubuntu3
ProcVersionSignature: Ubuntu 6.14.0-29.29-generic 6.14.8
Uname: Linux 6.14.0-29-generic x86_64
ApportVersion: 2.32.0-0ubuntu5.3
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Tue Sep 2 23:39:43 2025
InstallationDate: Installed on 2023-08-11 (753 days ago)
InstallationMedia: Ubuntu 23.04 "Lunar Lobster" - Release amd64 (20230418)
SourcePackage: lightdm
UpgradeStatus: Upgraded to plucky on 2025-04-13 (142 days ago)
** Affects: lightdm (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug plucky
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https://bugs.launchpad.net/bugs/2121903
Title:
gnome lock and switch user buttons crashes lightdm
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