Public bug reported:
Cannot unlock from screensaver Ubuntu 24.04.4 LTS / GNOME Shell 46.0
Other suggestions regarding shadow-group:
-rw-r----- 1 root shadow 1,9K Apr 22 02:44 shadow
-rw-r----- 1 root shadow 1,9K Apr 21 2025
shadow-
-rw-r----- 1 root shadow 1,6K Mär 26 2022
shadow.org
Some info from /var/log/auth.log
Tried to enter standby to try resume, but standby never happende.
2026-06-09T13:52:53.029706+02:00 jmueller-home systemd-logind[1613]: The system
will suspend now!
2026-06-09T13:52:53.035048+02:00 jmueller-home systemd-logind[1613]: Error
during inhibitor-delayed operation (already returned success to client): Unit
nvidia-resume.service not found.
2026-06-09T13:53:24.538046+02:00 jmueller-home systemd-logind[1613]: The system
will suspend now!
2026-06-09T13:53:24.542200+02:00 jmueller-home systemd-logind[1613]: Error
during inhibitor-delayed operation (already returned success to client): Unit
nvidia-resume.service not found.
2026-06-09T13:53:54.412748+02:00 jmueller-home gdm-launch-environment]:
pam_unix(gdm-launch-environment:session): session opened for user gdm(uid=125)
by (uid=0)
2026-06-09T13:53:54.433591+02:00 jmueller-home systemd-logind[1613]: New
session c2 of user gdm.
2026-06-09T13:53:54.459094+02:00 jmueller-home (systemd):
pam_unix(systemd-user:session): session opened for user gdm(uid=125) by
gdm(uid=0)
2026-06-09T13:53:55.737396+02:00 jmueller-home polkitd[1591]: Registered
Authentication Agent for unix-session:c2 (system bus name :1.402
[/usr/bin/gnome-shell], object path
/org/freedesktop/PolicyKit1/AuthenticationAgent, locale de_DE.UTF-8)
2026-06-09T13:54:18.011562+02:00 jmueller-home gdm-launch-environment]:
pam_unix(gdm-launch-environment:session): session closed for user gdm
2026-06-09T13:54:18.019386+02:00 jmueller-home systemd-logind[1613]: Session c2
logged out. Waiting for processes to exit.
2026-06-09T13:54:18.032999+02:00 jmueller-home polkitd[1591]: Unregistered
Authentication Agent for unix-session:c2 (system bus name :1.402, object path
/org/freedesktop/PolicyKit1/AuthenticationAgent, locale de_DE.UTF-8)
(disconnected from bus)
2026-06-09T13:54:18.043655+02:00 jmueller-home systemd-logind[1613]: Removed
session c2.
2026-06-09T13:54:21.604342+02:00 jmueller-home login[43581]: PAM unable to
dlopen(pam_lastlog.so): /usr/lib/security/pam_lastlog.so: cannot open shared
object file: No such file or directory
2026-06-09T13:54:21.604416+02:00 jmueller-home login[43581]: PAM adding faulty
module: pam_lastlog.so
2026-06-09T13:54:23.847929+02:00 jmueller-home login[43581]:
pam_unix(login:auth): authentication failure; logname=LOGIN uid=0 euid=0
tty=/dev/tty3 ruser= rhost= user=jmueller
2026-06-09T13:54:26.311226+02:00 jmueller-home login[43581]: FAILED LOGIN (1)
on '/dev/tty3' FOR 'jmueller', Authentication failure
2026-06-09T13:54:28.358590+02:00 jmueller-home (sd-pam):
pam_unix(systemd-user:session): session closed for user gdm
2026-06-09T13:54:34.859281+02:00 jmueller-home login[43581]:
pam_unix(login:session): session opened for user jmueller(uid=1000) by
LOGIN(uid=0)
2026-06-09T13:54:34.861472+02:00 jmueller-home systemd-logind[1613]: New
session 42 of user jmueller.
2026-06-09T13:55:01.475545+02:00 jmueller-home CRON[44484]:
pam_unix(cron:session): session opened for user root(uid=0) by root(uid=0)
2026-06-09T13:55:01.478801+02:00 jmueller-home CRON[44484]:
pam_unix(cron:session): session closed for user root
2026-06-09T13:55:57.276050+02:00 jmueller-home gdm-launch-environment]:
pam_unix(gdm-launch-environment:session): session opened for user gdm(uid=125)
by (uid=0)
2026-06-09T13:55:57.296841+02:00 jmueller-home systemd-logind[1613]: New
session c3 of user gdm.
2026-06-09T13:55:57.347229+02:00 jmueller-home (systemd):
pam_unix(systemd-user:session): session opened for user gdm(uid=125) by
gdm(uid=0)
2026-06-09T13:55:58.580618+02:00 jmueller-home polkitd[1591]: Registered
Authentication Agent for unix-session:c3 (system bus name :1.436
[/usr/bin/gnome-shell], object path
/org/freedesktop/PolicyKit1/AuthenticationAgent, locale de_DE.UTF-8)
2026-06-09T13:56:36.007662+02:00 jmueller-home gdm-launch-environment]:
pam_unix(gdm-launch-environment:session): session closed for user gdm
2026-06-09T13:56:36.021039+02:00 jmueller-home systemd-logind[1613]: Session c3
logged out. Waiting for processes to exit.
2026-06-09T13:56:36.054621+02:00 jmueller-home polkitd[1591]: Unregistered
Authentication Agent for unix-session:c3 (system bus name :1.436, object path
/org/freedesktop/PolicyKit1/AuthenticationAgent, locale de_DE.UTF-8)
(disconnected from bus)
2026-06-09T13:56:36.056822+02:00 jmueller-home systemd-logind[1613]: Removed
session c3.
2026-06-09T13:56:46.365566+02:00 jmueller-home (sd-pam):
pam_unix(systemd-user:session): session closed for user gdm
2026-06-09T13:57:08.806913+02:00 jmueller-home systemd-logind[1613]: The system
will reboot now!
2026-06-09T13:57:08.826771+02:00 jmueller-home systemd-logind[1613]: System is
rebooting.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: gnome-screensaver (not installed)
ProcVersionSignature: Ubuntu 6.8.0-124.124-generic 6.8.12
Uname: Linux 6.8.0-124-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Tue Jun 9 13:59:14 2026
InstallationDate: Installed on 2020-07-27 (2143 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
ProcEnviron:
LANG=de_DE.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
SourcePackage: gnome-screensaver
UpgradeStatus: Upgraded to noble on 2025-03-19 (447 days ago)
** Affects: gnome-screensaver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble wayland-session
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https://bugs.launchpad.net/bugs/2156056
Title:
Cannot unlock Screensaver with correct password
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