ukui-power-manager has a dependency on the dbus-x11 package, but doesn't
seem to use dbus-launch directly.
The dbus-x11 package is unnecessary on typical Debian desktop systems
which have systemd and dbus-user-session installed, and it has some
backwards-compatibility side-effects which are not ideal, so I'm trying to
reduce direct dependencies on it.
If ukui-power-manager needs a D-Bus session bus, the usual dependency is:
default-dbus-session-bus | dbus-session-bus
which in practice can be satisfied by either dbus-user-session or dbus-x11.
Thanks,
smcv