Package changes:
+kde-base/powerdevil-4.7.4
maybe chmod 0644 './dbus-1/system.d/org.kde.kcontrol.kcmremotewidgets.conf'
maybe chmod 0644 './dbus-1/system.d/org.kde.ksysguard.processlisthelper.conf'
maybe chmod 0644 './dbus-1/system.d/org.kde.polkitkde1.helper.conf'
+maybe chmod 0644 './dbus-1/system.d/org.kde.powerdevil.backlighthelper.conf'
maybe chmod 0644 './dbus-1/system.d/pulseaudio-system.conf'
maybe chmod 0644 './dbus-1/system.d/wpa_supplicant.conf'
maybe chmod 0755 './default'
--- /dev/null
+<!DOCTYPE busconfig PUBLIC
+ "-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN"
+ "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
+<busconfig>
+
+ <!-- Only user root can own the foo helper -->
+ <policy user="root">
+ <allow own="org.kde.powerdevil.backlighthelper"/>
+ </policy>
+
+</busconfig>