Comment # 8 on bug 1171115 from Fabian Vogt

(In reply to Matthias Gerstner from comment #7)
> (In reply to fabian@ritter-vogt.de from comment #6)
> > Can you run "killall polkit-kde-authentication-agent-1;
> > /usr/lib64/libexec/polkit-kde-authentication-agent-1 &; disown" before
> > attempting a shut down? That should not get killed early and confirm the
> > theory.
> 
> It does get killed. However I can't tell whether is getting killed "too
> early".
> 
> Actually nothing should be killed, before the action is authorized. If the
> authorization fails then there is nothing to shutdown or reboot.

The Plasma session management is currently undergoing a rewrite anyway, this
might be one of the planned changes.