Your message dated Sun, 04 Oct 2026 13:05:06 +0000
with message-id <[email protected]>
and subject line Bug#1149648: fixed in lightdm 1.33.1-4
has caused the Debian Bug report #1149648,
regarding lightdm: sysusers "u!" expires the lightdm account
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
1149648: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1149648
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: lightdm
Version: 1.33.1-3
Severity: normal
Tags: patch
Hi,
Since 1.33.1-2, debian/lightdm.sysusers has:
u! lightdm - "Light Display Manager" /var/lib/lightdm /bin/false
With "u!", systemd-sysusers (systemd 262-1) locks the account. It sets
the expiry date to 1. On a new install /etc/shadow has:
lightdm:!*:20727:::::1:
# chage -l lightdm
Account expires : Jan 02, 1970
When the greeter starts, logind starts [email protected] for lightdm. The
PAM account check fails, so the unit fails:
(systemd)[1093]: pam_unix(systemd-user:account): account lightdm has
expired (account expired)
(systemd)[1093]: [email protected]: Failed to set up PAM session:
Operation not permitted
systemd[1]: [email protected]: Failed with result 'exit-code'.
The greeter still shows, but "systemctl is-system-running" reports
"degraded".
Only new installs are affected. systemd-sysusers does not change an
account that already exists.
Other display managers use plain "u" (sddm, gdm3, greetd,
plasma-login-manager). Plain "u" still sets an invalid password, so
nobody can log in with a password.
Fix:
--- a/debian/lightdm.sysusers
+++ b/debian/lightdm.sysusers
@@ -1 +1 @@
-u! lightdm - "Light Display Manager" /var/lib/lightdm /bin/false
+u lightdm - "Light Display Manager" /var/lib/lightdm /bin/false
Workaround: chage -E -1 lightdm
I tested the workaround: after it, [email protected] is active and the
system state is "running".
Thanks, Kel
--- End Message ---
--- Begin Message ---
Source: lightdm
Source-Version: 1.33.1-4
Done: Yves-Alexis Perez <[email protected]>
We believe that the bug you reported is fixed in the latest version of
lightdm, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Yves-Alexis Perez <[email protected]> (supplier of updated lightdm package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Sun, 04 Oct 2026 14:45:18 +0200
Source: lightdm
Architecture: source
Version: 1.33.1-4
Distribution: unstable
Urgency: medium
Maintainer: Debian Xfce Maintainers <[email protected]>
Changed-By: Yves-Alexis Perez <[email protected]>
Closes: 1149648
Changes:
lightdm (1.33.1-4) unstable; urgency=medium
.
* d/lightdm.sysusers: don't set user as disabled (Closes: #1149648)
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--- End Message ---
