This is probably a systemd issue, but we can account for it and fix it in mate-session-manager.
Working on a solution at the moment ** Changed in: ubuntu-mate Status: Invalid => In Progress ** Changed in: ubuntu-mate Assignee: (unassigned) => Victor Kareh (vkareh) -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1801325 Title: User processes/sessions lingering after logoff Status in ubuntu-mate: In Progress Status in systemd package in Ubuntu: Confirmed Bug description: Hi! Logoff doesn't terminate all user processes/sessions, which means after mutiple logon/logoff operations lots of sessions and processes are leaking (you can see them with systemctl status). Verified with redshift(-gtk), at least. This can be worked around with KillUserProcesses=yes on /etc/systemd/logind.conf, but it breaks GNU Screen, for example. Tested on 18.04 and 18.10. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-mate/+bug/1801325/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp