This defect may not be in lightdm package. I was just able to reproduce
it on Ubuntu 18.04.01 distribution. Here is how I did it.
I am using 18.04.01 with KDE.
I installed the skypeforlinux package
This package had unsatisfied dependency gnome-keyring as without it skype will
not log in automatically.
I installed gnome-keyring and seahorse so that I can reset the keyring.
After these three I wasn't able to logout from my KDE session as I was logged
back in.
It didn't help to uninstall skypeforlinux or seahorse.
Only after I uninstalled gnome-keyring and restarted my computer I am able to
normally logout from my KDE session.
On a side node now even after I log out, I can still see my session hanging
around using
sudo loginctl
If I log in it till create second session as reported by the above command but
at least I can logout reliably.
** Also affects: lightdm
Importance: Undecided
Status: New
** Also affects: gnome-keyring
Importance: Undecided
Status: New
** Also affects: skype
Importance: Undecided
Status: New
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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to lightdm in Ubuntu.
https://bugs.launchpad.net/bugs/1782510
Title:
lightdm automatically logs in after logout
Status in GNOME Keyring:
New
Status in Light Display Manager:
New
Status in skype:
New
Status in lightdm package in Ubuntu:
Confirmed
Bug description:
Lightdm makes it impossible to logout. After I logout the lightdm logs
me automatically backs in.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: lightdm 1.18.1-0ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-130.156-generic 4.4.134
Uname: Linux 4.4.0-130-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
CurrentDesktop: KDE
Date: Thu Jul 19 01:18:52 2018
InstallationDate: Installed on 2016-04-26 (814 days ago)
InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Release amd64
(20160420.3)
SourcePackage: lightdm
UpgradeStatus: No upgrade log present (probably fresh install)
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