Public bug reported:
Hello,
I had a problem with lightdm: After logging out from a user session, the
login screen did not appear again, but instead the session restarted
automatically. This happened several times one after another, until
finally the third or fourth logout attempts was successful. While
investigating this, I discovered a difference from another computer with
the same lightdm upstream version, but without the problem: On the
Ubuntu machine, lightdm had one child process owned by root and two
child processes owned by the logged-in user, while on the other machine
lightdm had only the child process owned by root.
Result of my investigation was: All this could be solved by either
commenting out the pam_kwallet5.so module from /etc/pam.d/lightdm or
downgrading libpam-kwallet5 from 4:5.12.4-0ubuntu1.3 to
4:5.12.4-0ubuntu1.
I am using Ubuntu version 18.04 and lightm version 1.26.0-0ubuntu1.
Regards
Christoph
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: libpam-kwallet5 4:5.12.4-0ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-33.36-generic 4.15.18
Uname: Linux 4.15.0-33-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CurrentDesktop: GNOME
Date: Fri Aug 31 11:22:59 2018
InstallationDate: Installed on 2018-06-06 (85 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
SourcePackage: kwallet-pam
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: kwallet-pam (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic third-party-packages
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https://bugs.launchpad.net/bugs/1790108
Title:
Activating pam_kwallet5.so in lightdm pam configuration restarts user
sessions
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