From f9662449f0f7dbb452ba11fe85a3c81b386f6dab Mon Sep 17 00:00:00 2001
From: Ray Strode <rstrode@redhat.com>
Date: Mon, 29 Oct 2018 06:57:59 -0400
Subject: [PATCH] local-display-factory: pause for a few seconds before falling
 back to X

logind currently gets confused if a session is started immediately as
one is shutting down.

Workaround this problem by adding an artificial delay when falling
back to X.

http://bugzilla.redhat.com/1643874
---
 daemon/gdm-local-display-factory.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/daemon/gdm-local-display-factory.c b/daemon/gdm-local-display-factory.c
index 403921d32..ab7e12e91 100644
--- a/daemon/gdm-local-display-factory.c
+++ b/daemon/gdm-local-display-factory.c
@@ -283,60 +283,65 @@ on_display_status_changed (GdmDisplay             *display,
                 /* if this is a local display, do a full resync.  Only
                  * seats without displays will get created anyway.  This
                  * ensures we get a new login screen when the user logs out,
                  * if there isn't one.
                  */
                 if (is_local) {
                         /* reset num failures */
                         factory->priv->num_failures = 0;
 
                         gdm_local_display_factory_sync_seats (factory);
                 }
                 break;
         case GDM_DISPLAY_FAILED:
                 /* leave the display number in factory->priv->used_display_numbers
                    so that it doesn't get reused */
                 gdm_display_store_remove (store, display);
 
                 /* Create a new equivalent display if it was static */
                 if (is_local) {
 
                         factory->priv->num_failures++;
 
                         if (factory->priv->num_failures > MAX_DISPLAY_FAILURES) {
                                 /* oh shit */
                                 g_warning ("GdmLocalDisplayFactory: maximum number of X display failures reached: check X server log for errors");
                         } else {
 #ifdef ENABLE_WAYLAND_SUPPORT
                                 if (g_strcmp0 (session_type, "wayland") == 0) {
                                         g_free (session_type);
                                         session_type = NULL;
+
+                                        /* workaround logind race for now
+                                         * bug 1643874
+                                         */
+                                        g_usleep (2 * G_USEC_PER_SEC);
                                 }
 
 #endif
                                 create_display (factory, seat_id, session_type, is_initial);
                         }
                 }
                 break;
         case GDM_DISPLAY_UNMANAGED:
                 break;
         case GDM_DISPLAY_PREPARED:
                 break;
         case GDM_DISPLAY_MANAGED:
                 break;
         default:
                 g_assert_not_reached ();
                 break;
         }
 
         g_free (seat_id);
         g_free (session_type);
 }
 
 static gboolean
 lookup_by_seat_id (const char *id,
                    GdmDisplay *display,
                    gpointer    user_data)
 {
         const char *looking_for = user_data;
         char *current;
         gboolean res;
-- 
2.19.1