Comment # 17 on bug 1063060 from patrick shanahan

sounds list the same as https://bugzilla.opensuse.org/show_bug.cgi?id=1020363
which still has not been addressed.

removal of /usr/lib/systemd/user/sockets.target.wants/dbus.socket before
entering graphical.session appears to allow plasma session access.  note,
*before* attempting access to runlevel 5 after booting.