Your message dated Mon, 31 Aug 2026 10:34:22 +0000
with message-id <[email protected]>
and subject line Bug#1146047: fixed in elogind 255.17-1debian7
has caused the Debian Bug report #1146047,
regarding Xorg fails to get its own session
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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1146047: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1146047
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: elogind
Version: 255.17-1debian2
Severity: important
Dear maintainers,
I hope this bug report finds you well!
Elogind stopped working with Xorg since trixie.
The relevant line in Xorg.0.log says:
[...] (EE) systemd-logind: failed to get session: PID ... does not
belong to any known session
I managed to track the issue down to your patch
for using systemd-compatible cgroups.
The issue is due to missing logic in elogind
compared to what systemd's logind does.
In particular, when the function
"manager_get_session_by_pidref"
calls the function "cg_pidref_get_unit",
the returned hashtable is always empty.
I can confirm that Xorg works as expected
both with systemd's logind
and with elogind after removing this patch.
The problem is triggered only because Xorg
calls the dbus interface method "GetSessionByPID"
passing its own PID as argument.
If it were to call "GetSession"
or, even, call "GetSessionByPID" with an argument of zero
instead of its own PID,
the code path in elogind that calls
"manager_get_session_by_pidref" is not traversed.
After testing, I can confirm that,
if one change the source code of Xorg to pass zero as argument,
all works as expected.
Now, I can suggest to you three solutions:
(i) Stop using the patch
"Use-libsystemd0-compatible-cgroups-layout.patch"
(ii) File a bug against Xorg
to use "GetSession" instead of "GetSessionByPID"
(iii) Implement, in elogind, the missing bits that systemd has.
The easiest solution is (i),
but I guess you want to link against
libsystemd0 in Debian,
so this may not be an option.
Meanwhile, I doubt anyone could convince upstream Xorg
to make this change,
since it is not really a bug in Xorg.
So (ii) is probably only an option
if one were to add a patch to the Debian xserver-xorg package.
And (iii) seems like quite a bit of work,
though I might be able to help if you choose this option.
Yours faithfully,
B.R.S. Roso,
Abasileuton Ltd.
signature.asc
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--- End Message ---
--- Begin Message ---
Source: elogind
Source-Version: 255.17-1debian7
Done: Mark Hindley <[email protected]>
We believe that the bug you reported is fixed in the latest version of
elogind, 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.
Mark Hindley <[email protected]> (supplier of updated elogind 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: Mon, 31 Aug 2026 10:57:50 +0100
Source: elogind
Architecture: source
Version: 255.17-1debian7
Distribution: unstable
Urgency: medium
Maintainer: Debian Ecosystem Init Diversity Team
<[email protected]>
Changed-By: Mark Hindley <[email protected]>
Closes: 1146047
Changes:
elogind (255.17-1debian7) unstable; urgency=medium
.
* d/p/Use-libsystemd0-compatible-cgroups-layout.patch: elogind doesn't
support session_units so:-
- drop changes in logind-core.c manager_get_session_by_pidref():
(Closes: #1146047)
- drop changes in logind.h.
- cleanup metainformation.
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