tdecore: Fixed hybrid suspend (aka suspend to RAM + suspend to disk) support using HAL.

org.freedesktop.Hal.Device.SystemPowerManagement/SuspendHybrid requires a parameter when invoked.
This relates to bug 2601.

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>

tdecore/tdehw/tderootsystemdevice.cpp

@@ -834,12 +834,14 @@ bool TDERootSystemDevice::setPowerState(TDESystemPowerState::TDESystemPowerState
 					}
 				}
 				else if (ps == TDESystemPowerState::HybridSuspend) {
-					TQT_DBusMessage msg = TQT_DBusMessage::methodCall(
+					TQT_DBusProxy halPowerManagement(
 							"org.freedesktop.Hal",
 							"/org/freedesktop/Hal/devices/computer",
 							"org.freedesktop.Hal.Device.SystemPowerManagement",
-								"SuspendHybrid");
+							dbusConn);
-					TQT_DBusMessage reply = dbusConn.sendWithReply(msg);
+					TQValueList<TQT_DBusData> params;
+					params << TQT_DBusData::fromInt32(0);
+					TQT_DBusMessage reply = halPowerManagement.sendWithReply("SuspendHybrid", params);
 					if (reply.type() == TQT_DBusMessage::ReplyMessage) {
 						return true;
 					}