`power-profiles-daemon` module fails to initialize on cold start despite service readiness (a race condition?)

[silencespeakstruth]

The power-profiles-daemon module fails to appear in Waybar during the initial launch of the compositor (Hyprland). It only becomes visible after a manual restart of Waybar (killall waybar && waybar). This persists even when the system daemon is confirmed to be active and the D-Bus interface is reachable before Waybar starts.

I have implemented several systemd overrides to ensure the service is fully "baked" before the bar starts:

[~] λ> cat .config/systemd/user/waybar.service 
[Unit]
Description=Waybar status bar
After=graphical-session.target
Requires=dbus.socket

[Service]
ExecStartPre=/usr/bin/gdbus wait --system net.hadess.PowerProfiles
ExecStart=/usr/bin/waybar
Restart=on-failure

[Install]
WantedBy=graphical-session.target

This works with exec-once = /usr/bin/systemctl --user waybar.service

[cebem1nt]

Could you provide some logs?