diff -Nru gdm3-44.1/debian/changelog gdm3-44.1/debian/changelog
--- gdm3-44.1/debian/changelog  2023-05-15 19:23:16.000000000 +0000
+++ gdm3-44.1/debian/changelog  2023-05-31 08:40:52.000000000 +0000
@@ -1,3 +1,11 @@
+gdm3 (44.1-1ubuntu2) UNRELEASED; urgency=medium
+
+  * Add d/p/ubuntu/flush-signal-handler-on-udev-settle.patch:
+    Clear signal handler after udev settle to avoid sudden
+    logout (LP: #2020641)
+
+ -- Ghadi Elie Rahme <ghadi.rahme@canonical.com>  Wed, 31 May 2023 08:40:52 +0000
+
 gdm3 (44.1-1ubuntu1) mantic; urgency=medium

    * Merge with Debian (LP: #2015406). Remaining changes:
diff -Nru gdm3-44.1/debian/control gdm3-44.1/debian/control
--- gdm3-44.1/debian/control    2023-05-15 19:23:16.000000000 +0000
+++ gdm3-44.1/debian/control    2023-05-31 08:40:52.000000000 +0000
@@ -7,7 +7,7 @@
 Priority: optional
 Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
 XSBC-Original-Maintainer: Debian GNOME Maintainers <pkg-gnome-maintainers@lists.alioth.debian.org>
-Uploaders: Jeremy Bicha <jbicha@ubuntu.com>, Marco Trevisan (Treviño) <marco@ubuntu.com>
+Uploaders: Jeremy Bicha <jbicha@ubuntu.com>
 Build-Depends: check (>= 0.9.4),
                dconf-cli (>= 0.19.90),
                debhelper-compat (= 13),
diff -Nru gdm3-44.1/debian/patches/series gdm3-44.1/debian/patches/series
--- gdm3-44.1/debian/patches/series     2023-05-15 19:23:16.000000000 +0000
+++ gdm3-44.1/debian/patches/series     2023-05-31 08:32:28.000000000 +0000
@@ -13,3 +13,4 @@
 ubuntu/XSession-Use-x-terminal-emulator-as-fallback-instead-of-x.patch
 ubuntu/Revert-data-Disable-GDM-on-hybrid-graphics-laptops-with-v.patch
 ubuntu/start-after-cloudinit.patch
+ubuntu/flush-signal-handler-on-udev-settle.patch
diff -Nru gdm3-44.1/debian/patches/ubuntu/flush-signal-handler-on-udev-settle.patch gdm3-44.1/debian/patches/ubuntu/flush-signal-handler-on-udev-settle.patch
--- gdm3-44.1/debian/patches/ubuntu/flush-signal-handler-on-udev-settle.patch   1970-01-01 00:00:00.000000000 +0000
+++ gdm3-44.1/debian/patches/ubuntu/flush-signal-handler-on-udev-settle.patch   2023-05-31 08:40:40.000000000 +0000
@@ -0,0 +1,45 @@
+From: Ghadi Elie Rahme <ghadi.rahme@canonical.com>
+Date: Tue, 31 May 2023 12:40:41 +0000
+Subject: Flush signal handler on all udev timeout
+
+When a udev is settled the signal handler is
+flushed,however this is not the case if the
+function returns early. This patch makes sure
+that the signal handler is flushed if the
+udev is settled and the function returns early.
+
+Bug-Ubuntu: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/2020641
+---
+daemon/gdm-local-display-factory.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+
+
+Index: gdm3-44.1/daemon/gdm-local-display-factory.c
+===================================================================
+--- gdm3-44.1.orig/daemon/gdm-local-display-factory.c
++++ gdm3-44.1/daemon/gdm-local-display-factory.c
+@@ -645,17 +645,20 @@ udev_is_settled (GdmLocalDisplayFactory
+
+         if (factory->seat0_has_platform_graphics) {
+                 g_debug ("GdmLocalDisplayFactory: udev settled, platform graphics enabled.");
+-                return TRUE;
++                g_clear_signal_handler (&factory->uevent_handler_id, factory->gudev_client);
++                return TRUE;
+         }
+
+         if (factory->seat0_has_boot_up_graphics) {
+                 g_debug ("GdmLocalDisplayFactory: udev settled, boot up graphics available.");
+-                return TRUE;
++                g_clear_signal_handler (&factory->uevent_handler_id, factory->gudev_client);
++                return TRUE;
+         }
+
+         if (factory->seat0_graphics_check_timed_out) {
+                 g_debug ("GdmLocalDisplayFactory: udev timed out, proceeding anyway.");
+-                return TRUE;
++                g_clear_signal_handler (&factory->uevent_handler_id, factory->gudev_client);
++                return TRUE;
+         }
+
+         g_debug ("GdmLocalDisplayFactory: Checking if udev has settled enough to support graphics.");