The kuiserver5 process does not exit when logging out, causing the session to remain open. I'm using systemd (logind) and sddm. The state of the session in logind is listed as "closing", but it never actually closes. After several logouts/logins loginctl reports a bunch of sessions, such as the one seen below.
Output from "loginctl session-status c13":
c13 - <username> (1000)
Since: Tue 2014-11-25 19:03:38 CET; 2 days ago
Seat: seat0; vc7
Service: sddm; type x11; class user
If it's the bug I think it is, this was fixed in 5.1.2
Ok, will test with 5.1.2 when it gets released and re-open bug if unresolved.
This unfortunately still happens with plasma 5.1.2 and sddm 0.11.0.
I can also reproduce this, and I think due to this my notifications applet is not working.. I have some ugly notifications from somewhere...
Still happens in plasma 5.2.0.
Same for me with plasma 5.2.0, I don't seem to have problems with notifications, though.
*** This bug has been marked as a duplicate of bug 348123 ***