Index: /trunk/src/VBox/Main/HostPower.cpp
===================================================================
--- /trunk/src/VBox/Main/HostPower.cpp	(revision 13705)
+++ /trunk/src/VBox/Main/HostPower.cpp	(revision 13706)
@@ -95,7 +95,8 @@
     CheckComRCReturnRC (rc);
 
-    /* Valid combinations:
-     * running & suspend or battery low notification events
-     * pause   & resume or battery low notification events
+    /* Power event handling:
+     * - pause running machines for HostPowerEvent_Suspend
+     * - resume paused machines for HostPowerEvent_Resume
+     * - save the state of running and paused machine for HostPowerEvent_BatteryLow
      */
     if (    (state == MachineState_Running && event != HostPowerEvent_Resume)