Public bug reported:
since the upgrade from 24.04 to 24.10 the lightdm login does not work
anymore and is starting and then immediately dying in a very fast cycle.
the only way to stop the endless cycle is to quickly try to switch to
the linux vt and press ctrl-alt-del for reboot and then use
systemrescuecd to run "dpkg-reconfigure lightdm" in a chroot to switch
to gdm3 login. i was checking various logs but could not find anything
obvious except for the segfault in the seat0-greeter.log (attached).
ProblemType: Bug
DistroRelease: Ubuntu 24.10
Package: lightdm 1.30.0-0ubuntu14
ProcVersionSignature: Ubuntu 6.11.0-9.9-generic 6.11.0
Uname: Linux 6.11.0-9-generic x86_64
ApportVersion: 2.30.0-0ubuntu4
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: XFCE
Date: Tue Oct 22 22:03:06 2024
InstallationDate: Installed on 2023-09-29 (389 days ago)
InstallationMedia: Ubuntu 23.04 "Lunar Lobster" - Release amd64 (20230418)
SourcePackage: lightdm
UpgradeStatus: Upgraded to oracular on 2024-10-20 (2 days ago)
** Affects: lightdm (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug oracular third-party-packages
** Attachment added: "tar of the /var/log/lightdm/ contents"
https://bugs.launchpad.net/bugs/2085382/+attachment/5830894/+files/lightdm.tar.bz2
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https://bugs.launchpad.net/bugs/2085382
Title:
lightdm is endlessly starting and dying in a several seconds cycle
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