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. -- 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/1472259 Title: Quirky session behavior w/ systemd from ppa:pitti/systemd Status in systemd package in Ubuntu: In Progress Bug description: Using systemd from ppa:pittti/systemd, I'm experiencing quirky session behavior such as not being able to reboot or shutdown due to gnome- session wanting interactive authentication. Here are the requested outputs: $ loginctl SESSION UID USER SEAT c1 110 lightdm seat0 1 1000 townsend 2 sessions listed. $ loginctl show-session $XDG_SESSION_ID Id=c1 Name=lightdm Timestamp=Tue 2015-07-07 08:55:50 EDT TimestampMonotonic=4093727 VTNr=7 Display=:0 Remote=no Service=lightdm-greeter Scope=session-c1.scope Leader=992 Audit=0 Type=x11 Class=greeter Active=yes State=closing IdleHint=no IdleSinceHint=0 IdleSinceHintMonotonic=0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1472259/+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