Reboot/shutdown buttons always failed: power.rs called `loginctl
reboot|poweroff`, but loginctl has no such verbs (systemd 260) — those
belong to systemctl. moonlock/moonset already used systemctl; moongreet
was the outlier. Switch to `systemctl --no-ask-password reboot|poweroff`.
The multi-monitor greeter gave Exclusive keyboard only to the first
monitor's window, so a user focused on any other output could not type
the password. Drop the per-monitor loop + hotplug; create one window on
the focused output (no set_monitor) with Exclusive keyboard.
Polkit rule kept as a harmless safety net (it was never the blocker;
CanReboot returns yes). The missing journal errors were not a logging
bug — they were lost to a hard power-cut before journald synced.
The rule that grants the greeter user authorization for
org.freedesktop.login1.{reboot,power-off} lived only in the moonarch
repo and was never installed by any PKGBUILD. On a fresh install the
reboot/shutdown buttons silently failed because greetd's greeter
session is inactive in logind and polkit denies inactive sessions by
default.
Move the rule into the moongreet source tree where it belongs and
ship it via moongreet-git.
nevaforget