It is indeed happening again for me. I think that it didn't happen with systemd 232-2git1 and it does again with 232-3 - I've tried downgrading and upgrading a few times and it was reliably correlated with that.
** Attachment added: "1637758.png" https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1637758/+attachment/4775957/+files/1637758.png ** Changed in: lightdm (Ubuntu) Status: Invalid => Triaged ** Changed in: lightdm (Ubuntu) Importance: Undecided => High ** Also affects: systemd (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/1637758 Title: lightdm greeter session not properly shut down at login Status in lightdm package in Ubuntu: Triaged Status in systemd package in Ubuntu: New Bug description: I am using lightdm with 2 seats. After 2409 revision randomly one of two seats does not work correctly. xsettings plugin from unity-settings-daemon or gnome-settings-deamon fails to start because there is already _XSESSION_S* manager running. After revision 2409 in system monitor I see that there is still running unity-settings-daemon started by lightdm. Reverting this revision fixes my problem. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1637758/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp