Comment 8 for bug 1472259

Thanks for confirming! So this is definitively from leftovers of the lightdm session:

  └─user-110.slice
    ├─user@110.service
    │ ├─996 /lib/systemd/systemd --user
    │ └─997 (sd-pam)
    └─session-c1.scope
      ├─1149 /usr/bin/pulseaudio --start --log-target=syslog
      └─1168 /usr/lib/pulseaudio/pulse/gconf-helper

Right after logging in I also could briefly reproduce this, I had

        c2 1000 martin seat0
        c1 115 lightdm seat0

but unfortunately it didn't last long enough to get "loginctl session-status c1", I suppose the leaked processes eventually just timed out. But this would be enough to cause this.

Building updated PPA package now, will take some 45 mins to get through all the tests.