--- xfce4-session-4.3.90.2.orig/xfce4-session/xfsm-fadeout.c
+++ xfce4-session-4.3.90.2/xfce4-session/xfsm-fadeout.c
@@ -59,6 +59,12 @@
   '.', ' ',
 };
 
+static gboolean
+do_clear (gpointer data)
+{
+  gdk_window_clear (data);
+  return FALSE;
+}
 
 XfsmFadeout*
 xfsm_fadeout_new (GdkDisplay *display)
@@ -118,7 +124,10 @@
     }
 
   for (lp = fadeout->screens; lp != NULL; lp = lp->next)
+  {
     gdk_window_show (((FoScreen *) lp->data)->window);
+    g_idle_add (do_clear, ((FoScreen *) lp->data)->window);
+  }
 
   gdk_cursor_unref (cursor);