--- gnome-session-2.25.2/gnome-session/main.c.ori	2008-12-26 04:08:19.837029682 +0000
+++ gnome-session-2.25.2/gnome-session/main.c	2008-12-26 04:09:10.959777120 +0000
@@ -30,6 +30,7 @@
 
 #include <glib/gi18n.h>
 #include <glib.h>
+#include <gdk/gdkx.h>
 #include <gtk/gtk.h>
 
 #include <dbus/dbus.h>
@@ -494,6 +495,8 @@
         struct sigaction  sa;
         GError           *error;
         char             *display_str;
+	Display *xdisp;
+	GdkDisplay *gdisp;
         GsmManager       *manager;
         GsmStore         *client_store;
         GsmXsmpServer    *xsmp_server;
@@ -557,6 +560,10 @@
         gsm_util_setenv ("DISPLAY", display_str);
         g_free (display_str);
 
+	gdisp = gdk_display_get_default ();
+	xdisp = gdk_x11_display_get_xdisplay (gdisp);
+	XInternAtom (xdisp, "GNOME_SM_DESKTOP", FALSE);
+
         /* Some third-party programs rely on GNOME_DESKTOP_SESSION_ID to
          * detect if GNOME is running. We keep this for compatibility reasons.
          */