From 2ec1b65c7bc2cefeabbd9a7a3a50436e1233804c Mon Sep 17 00:00:00 2001
From: Ray Strode <rstrode@redhat.com>
Date: Fri, 22 Jun 2018 14:55:39 -0400
Subject: [PATCH 10/51] manager: start login screen if old one is finished

Since commit 22c332ba we try to start a login screen if we end up
on an empty VT and there isn't one running.

Unfortunately the check for "is on an empty VT" is a little busted.
It counts the VT has non-empty if there's a display associated with
it, even if that display is in the FINISHED state about to be
reaped.

That means, in some cases, we'll still leave the user on an empty
VT with no login screen.

This commit addresses the problem by explicitly checking for
FINISHED displays, and proceeding even in their presense.
---
 daemon/gdm-manager.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/daemon/gdm-manager.c b/daemon/gdm-manager.c
index a4dad92ee..a6f13dec7 100644
--- a/daemon/gdm-manager.c
+++ b/daemon/gdm-manager.c
@@ -1444,61 +1444,61 @@ activate_login_window_session_on_seat (GdmManager *self,
                 return;
         }
 
         if (session_id) {
                 activate_session_id (self, seat_id, session_id);
                 g_free (session_id);
         }
 }
 
 static void
 maybe_activate_other_session (GdmManager *self,
                               GdmDisplay *old_display)
 {
         char *seat_id = NULL;
         char *session_id = NULL;
         int ret;
 
         g_object_get (G_OBJECT (old_display),
                       "seat-id", &seat_id,
                       NULL);
 
         ret = sd_seat_get_active (seat_id, &session_id, NULL);
 
         if (ret == 0) {
                 GdmDisplay *display;
 
                 display = gdm_display_store_find (self->priv->display_store,
                                                   lookup_by_session_id,
                                                   (gpointer) session_id);
 
-                if (display == NULL) {
+                if (display == NULL || gdm_display_get_status (display) == GDM_DISPLAY_FINISHED) {
                         activate_login_window_session_on_seat (self, seat_id);
                 }
 
                 g_free (session_id);
         }
 
         g_free (seat_id);
 }
 
 static const char *
 get_username_for_greeter_display (GdmManager *manager,
                                   GdmDisplay *display)
 {
         gboolean doing_initial_setup = FALSE;
 
         g_object_get (G_OBJECT (display),
                       "doing-initial-setup", &doing_initial_setup,
                       NULL);
 
         if (doing_initial_setup) {
                 return INITIAL_SETUP_USERNAME;
         } else {
                 return GDM_USERNAME;
         }
 }
 
 static void
 set_up_automatic_login_session (GdmManager *manager,
                                 GdmDisplay *display)
 {
-- 
2.27.0