Given the tests coded in: liblightdm-gobject/power.c
using org.freedesktop.login1 testing for each of Suspend, Hibernate, Restart and Shutdown are failing & shouldn't regardless if libpam_systemd or libpam-elogind is in use, it's possible this bug is a problem in policykit-1 which has been somewhat heavily hacked at to provide support for both without having to compile different versions against different libraries. It might be worth a conversation with the maintainers of said package to determine exactly who's bug this actually is. I vaguely seem to recall that when I compiled policykit-1 v 0.115 (what experimental had at the time) Against libelogind-dev rather than libsystemd-dev on a system using sysvinit-core and openrc and also using the patch referenced here: https://gitlab.freedesktop.org/polkit/polkit/issues/29 Then this issue went away. My memory may be playing me tricks however. Even though I didn't do it properly & just used an equivs package & a symlink from libelogind.pc to libsystemd.pc in order to fool the build-deps & actually build the packages. I'm afraid that doing the job properly or determining exactly what's going on here is slightly above my skill level. Frankly I wish I could tell & provide a patch for whichever package is at fault.
