Index: gdm-2.31.2/daemon/gdm-session-direct.c
===================================================================
--- gdm-2.31.2.orig/daemon/gdm-session-direct.c
+++ gdm-2.31.2/daemon/gdm-session-direct.c
@@ -50,6 +50,8 @@
 #include <dbus/dbus-glib.h>
 #include <dbus/dbus-glib-lowlevel.h>
 
+#include "gdm-sysconfig.h"
+
 #include "gdm-session-direct.h"
 #include "gdm-session.h"
 #include "gdm-session-private.h"
@@ -674,6 +676,15 @@ get_fallback_session_name (GdmSessionDir
                 }
         }
 
+        name = gdm_sysconfig_load_value ("/etc/sysconfig/windowmanager", "DEFAULT_WM");
+        if (name && get_session_command_for_name (name, NULL)) {
+                return name;
+        }
+
+        if (name) {
+                g_free (name);
+        }
+
         name = g_strdup ("gnome");
         if (get_session_command_for_name (name, NULL)) {
                 g_free (session_direct->priv->fallback_session_name);