Kevin Kofler wrote:
What KDM does is that it runs (as root, like all of KDM) the command
given
by its HaltCmd option, which defaults to its HALT_CMD macro, which is
defined on GNU/Linux as "/sbin/halt". However, I see that we override this
in our default kdmrc in kde-settings-kdm as "HaltCmd=/sbin/poweroff".
I don't know which update did it, perhaps systemd-8-3, but it now works. So
does
poweroff from the command line.