--- lxsession-logout/lxsession-logout.c	2016-12-05 21:07:14.000000000 +0100
+++ lxsession-logout/lxsession-logout.c.new	2017-11-03 18:50:00.789217822 +0100
@@ -560,27 +560,28 @@
         handler_context.hibernate_available = TRUE;
         handler_context.hibernate_UPower = TRUE;
     }
-
-    /* If we are under GDM, its "Switch User" is available. */
+	/* Do not allow Switch User under gdm or lightdm in Sint, as that
+	 * brings up a screen locker inaccessible using speech
+     * If we are under GDM, its "Switch User" is available. *
     if (verify_running("gdm", "gdmflexiserver"))
     {
         handler_context.switch_user_available = TRUE;
         handler_context.switch_user_GDM = TRUE;
     }
-
-    /* If we are under GDM3, its "Switch User" is available. */
+    * If we are under GDM3, its "Switch User" is available. *
     if (verify_running("gdm3", "gdmflexiserver"))
     {
         handler_context.switch_user_available = TRUE;
         handler_context.switch_user_GDM = TRUE;
     }
 
-    /* lightdm can be found by the env */
+    * lightdm can be found by the env *
     if (g_getenv("XDG_SEAT_PATH"))
     {
         handler_context.switch_user_available = TRUE;
         handler_context.switch_user_LIGHTDM = TRUE;
     }
+    */
 
     /* If we are under KDM, its "Switch User" is available. */
     if (verify_running("kdm", "kdmctl"))