diff -urp lightdm-1.7.15/src/x-server.c lightdm-1.7.15-new/src/x-server.c
--- lightdm-1.7.15/src/x-server.c	2013-09-06 16:23:35.000000000 +0100
+++ lightdm-1.7.15-new/src/x-server.c	2013-09-17 18:56:56.000000000 +0100
@@ -169,7 +169,6 @@ x_server_connect_session (DisplayServer
         l_debug (session, "Not setting XDG_VTNR");
 
     session_set_env (session, "DISPLAY", x_server_get_address (X_SERVER (display_server)));
-    session_set_tty (session, x_server_get_address (X_SERVER (display_server)));
     session_set_xdisplay (session, x_server_get_address (X_SERVER (display_server)));
     session_set_remote_host_name (session, x_server_get_hostname (X_SERVER (display_server)));
     session_set_x_authority (session,