diff --git a/gdm-xdmcp-display-this-shouldn-t-be-an-abstract-type.patch b/gdm-xdmcp-display-this-shouldn-t-be-an-abstract-type.patch
new file mode 100644
index 0000000..4196312
--- /dev/null
+++ b/gdm-xdmcp-display-this-shouldn-t-be-an-abstract-type.patch
@@ -0,0 +1,29 @@
+From d28f4d6d3b5abc0001fbf11f4ff54aeacece84b6 Mon Sep 17 00:00:00 2001
+From: Ray Strode <rstrode@redhat.com>
+Date: Wed, 4 Nov 2015 15:11:29 -0500
+Subject: [PATCH] xdmcp-display: this shouldn't be an abstract type
+
+We instantiate it directly, so make it a normal
+type.
+
+https://bugzilla.gnome.org/show_bug.cgi?id=757714
+---
+ daemon/gdm-xdmcp-display.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/daemon/gdm-xdmcp-display.c b/daemon/gdm-xdmcp-display.c
+index 764bcff..c9f9c3d 100644
+--- a/daemon/gdm-xdmcp-display.c
++++ b/daemon/gdm-xdmcp-display.c
+@@ -66,7 +66,7 @@ enum {
+ static void     gdm_xdmcp_display_class_init    (GdmXdmcpDisplayClass *klass);
+ static void     gdm_xdmcp_display_init          (GdmXdmcpDisplay      *xdmcp_display);
+ 
+-G_DEFINE_ABSTRACT_TYPE (GdmXdmcpDisplay, gdm_xdmcp_display, GDM_TYPE_DISPLAY)
++G_DEFINE_TYPE (GdmXdmcpDisplay, gdm_xdmcp_display, GDM_TYPE_DISPLAY)
+ 
+ gint32
+ gdm_xdmcp_display_get_session_number (GdmXdmcpDisplay *display)
+-- 
+2.6.2
+
diff --git a/gdm.changes b/gdm.changes
index fee2bc3..0b9eb57 100644
--- a/gdm.changes
+++ b/gdm.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Wed Feb 10 10:05:39 UTC 2016 - fcrozat@suse.com
+
+- Add gdm-xdmcp-display-this-shouldn-t-be-an-abstract-type.patch:
+  fix xdmcp not working at all (bgo#757714).
+
 -------------------------------------------------------------------
 Tue Dec 29 11:39:32 UTC 2015 - zaitor@opensuse.org
 
diff --git a/gdm.spec b/gdm.spec
index a9dcbb7..2ea3627 100644
--- a/gdm.spec
+++ b/gdm.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package gdm
 #
-# Copyright (c) 2015 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2016 SUSE LINUX GmbH, Nuernberg, Germany.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -60,6 +60,8 @@ Patch34:        gdm-default-wm.patch
 Patch35:        gdm-xauthlocalhostname.patch
 # PATCH-FIX-UPSTREAM gdm-plymouth-vt1.patch bnc#881676 fcrozat@suse.com -- switch to VT1 when quitting if gdm was starting with plymouth running
 Patch41:        gdm-plymouth-vt1.patch
+# PATCH-FIX-UPSTREAM gdm-xdmcp-display-this-shouldn-t-be-an-abstract-type.patch bgo#757714 fcrozat@suse.com -- Fix xdmcp not starting at all
+Patch42:        gdm-xdmcp-display-this-shouldn-t-be-an-abstract-type.patch
 BuildRequires:  check-devel
 # needed for directory ownership
 BuildRequires:  dconf
@@ -192,6 +194,7 @@ translation-update-upstream
 %patch34 -p1
 #patch35 -p1
 %patch41 -p1
+%patch42 -p1
 
 %build
 NOCONFIGURE=1 sh autogen.sh