[Bug 1801325] Re: User processes/sessions lingering after logoff

[Rui Salvaterra]

Note that I filed this under ubuntu-mate because I only verified this
behaviour under MATE, so I assumed it could be a mate-session-manager
issue. Of course, I suspect it's really a systemd-logind problem, but I
thought it might be wise to give it the benefit of the doubt… ;)

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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.

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