diff -Nur gnome-power-manager-2.20.0/libhal-glib/libhal-gpower.c gnome-power-manager-2.20.0.new/libhal-glib/libhal-gpower.c
--- gnome-power-manager-2.20.0/libhal-glib/libhal-gpower.c	2007-10-12 11:20:29.000000000 +0200
+++ gnome-power-manager-2.20.0.new/libhal-glib/libhal-gpower.c	2007-10-12 11:20:49.000000000 +0200
@@ -247,7 +247,7 @@
 	ret = dbus_g_proxy_call (proxy, "Suspend", error,
 				 G_TYPE_INT, wakeup,
 				 G_TYPE_INVALID,
-				 G_TYPE_UINT, &retval,
+				 G_TYPE_INT, &retval,
 				 G_TYPE_INVALID);
 	/* we might have to ignore the error */
 	if (error != NULL && hal_gpower_filter_error (error) == TRUE) {
@@ -291,7 +291,7 @@
 
 	ret = dbus_g_proxy_call (proxy, method, error,
 				 G_TYPE_INVALID,
-				 G_TYPE_UINT, &retval,
+				 G_TYPE_INT, &retval,
 				 G_TYPE_INVALID);
 	/* we might have to ignore the error */
 	if (error != NULL && hal_gpower_filter_error (error) == TRUE) {
@@ -382,7 +382,7 @@
 	ret = dbus_g_proxy_call (proxy, "SetPowerSave", &error,
 				 G_TYPE_BOOLEAN, enable,
 				 G_TYPE_INVALID,
-				 G_TYPE_UINT, &retval,
+				 G_TYPE_INT, &retval,
 				 G_TYPE_INVALID);
 	if (retval != 0) {
 		g_warning ("SetPowerSave failed in a horrible way!");
diff -Nur gnome-power-manager-2.20.0/src/gpm-brightness-lcd.c gnome-power-manager-2.20.0.new/src/gpm-brightness-lcd.c
--- gnome-power-manager-2.20.0/src/gpm-brightness-lcd.c	2007-07-27 01:28:18.000000000 +0200
+++ gnome-power-manager-2.20.0.new/src/gpm-brightness-lcd.c	2007-10-12 11:20:49.000000000 +0200
@@ -84,7 +84,7 @@
 	GError *error = NULL;
 	gboolean ret;
 	DBusGProxy *proxy;
-	int level = 0;
+	gint level = 0;
 
 	g_return_val_if_fail (brightness != NULL, FALSE);
 	g_return_val_if_fail (GPM_IS_BRIGHTNESS_LCD (brightness), FALSE);
@@ -97,7 +97,7 @@
 
 	ret = dbus_g_proxy_call (proxy, "GetBrightness", &error,
 				 G_TYPE_INVALID,
-				 G_TYPE_UINT, &level,
+				 G_TYPE_INT, &level,
 				 G_TYPE_INVALID);
 
 	if (brightness_level_hw != NULL) {
@@ -155,9 +155,9 @@
 	gpm_debug ("Setting %i of %i", brightness_level_hw, brightness->priv->levels - 1);
 
 	ret = dbus_g_proxy_call (proxy, "SetBrightness", &error,
-				 G_TYPE_INT, (int)brightness_level_hw,
+				 G_TYPE_INT, (gint)brightness_level_hw,
 				 G_TYPE_INVALID,
-				 G_TYPE_UINT, &retval,
+				 G_TYPE_INT, &retval,
 				 G_TYPE_INVALID);
 	/* retval is ignored, the HAL API is broken... */