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Message #07007
[Bug 2122294] Re: gnome-session-init-worker crashes with SIGTRAP (Failed to start unit gnome-session-x11@gnome-login.target: ...: Unit gnome-session-x11@gnome-login.target not found.)
Let me post the result of the command you asked for:
➜ grep -l nvidia /usr/lib/udev/rules.d/*
/usr/lib/udev/rules.d/71-nvidia.rules
/usr/lib/udev/rules.d/71-u-d-c-gpu-detection.rules
➜ egrep -r 'WaylandEnable false|PreferredDisplayServer xorg' /usr/lib/udev/rules.d/
(nothing)
@Alessandro,
I had the regular /etc/gdm3/custom.conf in place. So probably after the
upgrade to 49rc, I start getting this delay in the boot. I also thought
that was something related to Xorg, so I set `WaylandEnable=true`, even
it's default behavior when the option is commented, that will force the
use of Wayland and fix the problem, but it didn't. As previously
requested, I comented the line again, I just kept debug.Enable=true to
get logs.
I still need to reboot my machine and check if the problem occurs with
the new package version.
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https://bugs.launchpad.net/bugs/2122294
Title:
gnome-session-init-worker crashes with SIGTRAP (Failed to start unit
gnome-session-x11@gnome-login.target: ...: Unit gnome-
session-x11@gnome-login.target not found.)
Status in gdm3 package in Ubuntu:
Fix Released
Status in gnome-session package in Ubuntu:
Won't Fix
Bug description:
I restarted my machine today, and it was odd how long took to GDM appears. For some reason it seems it was in a crash loop. Normally after the boot it appears turning on my external display, and than appears the GDM. But this time it entered in a loop turning on and off my external display.
I can say that because appears an OSD written "HDMI 2" when it turns on the display.
I hope the logs can give you more details about it.
ProblemType: Bug
DistroRelease: Ubuntu 25.10
Package: gdm3 49~rc-0ubuntu1
ProcVersionSignature: Ubuntu 6.17.0-3.3-generic 6.17.0-rc3
Uname: Linux 6.17.0-3-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.33.1-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Sun Sep 7 14:45:45 2025
InstallationDate: Installed on 2021-11-26 (1381 days ago)
InstallationMedia: Ubuntu 21.10 "Impish Indri" - Release amd64 (20211012)
SourcePackage: gdm3
UpgradeStatus: Upgraded to questing on 2025-08-25 (13 days ago)
mtime.conffile..etc.gdm3.custom.conf: 2025-09-07T13:52:05.225338
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