diff -Nru gdm3-3.28.2/debian/changelog gdm3-3.28.2/debian/changelog
--- gdm3-3.28.2/debian/changelog	2018-06-05 10:58:41.000000000 +0000
+++ gdm3-3.28.2/debian/changelog	2018-06-13 12:04:30.000000000 +0000
@@ -1,3 +1,10 @@
+gdm3 (3.28.2-0ubuntu1.3) bionic; urgency=medium
+
+  * debian/patches/daemon-gdm-session-record.c-open-close-the-utmp-database.patch:
+    - Keep the number of logged-in consistent with reality (LP: #1776487)
+
+ -- Marco Trevisan (Treviño) <marco@ubuntu.com>  Wed, 13 Jun 2018 13:04:30 +0100
+
 gdm3 (3.28.2-0ubuntu1.2) bionic; urgency=medium
 
   * debian/patches/libgdm-drop-support-for-serializing-multiple-opens.patch,
diff -Nru gdm3-3.28.2/debian/patches/daemon-gdm-session-record.c-open-close-the-utmp-database.patch gdm3-3.28.2/debian/patches/daemon-gdm-session-record.c-open-close-the-utmp-database.patch
--- gdm3-3.28.2/debian/patches/daemon-gdm-session-record.c-open-close-the-utmp-database.patch	1970-01-01 00:00:00.000000000 +0000
+++ gdm3-3.28.2/debian/patches/daemon-gdm-session-record.c-open-close-the-utmp-database.patch	2018-06-13 12:04:30.000000000 +0000
@@ -0,0 +1,43 @@
+From: Jason Pleau <jason@jpleau.ca>
+Date: Wed, 30 May 2018 21:48:22 -0400
+Subject: daemon/gdm-session-record.c: open/close the utmp database
+
+pututxline() was used without first opening the utxmp database and
+without closing it, preventing the logout entry from being fully
+committed.
+
+This caused the number of logged-in users to increment after each login,
+as logging out did not correctly remove the user login record from utmp.
+
+This commit wraps pututxline() between setutxent() and endutxent(),
+making sure that the login/logout operation are fully flushed.
+
+Fixes #381
+---
+ daemon/gdm-session-record.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/daemon/gdm-session-record.c b/daemon/gdm-session-record.c
+index 487f100..d2df588 100644
+--- a/daemon/gdm-session-record.c
++++ b/daemon/gdm-session-record.c
+@@ -213,7 +213,9 @@ gdm_session_record_login (GPid                  session_pid,
+         /* Handle utmp */
+ #if defined(HAVE_GETUTXENT)
+         g_debug ("Adding or updating utmp record for login");
++        setutxent();
+         pututxline (&session_record);
++        endutxent();
+ #elif defined(HAVE_LOGIN)
+ 	login (&session_record);
+ #endif
+@@ -256,7 +258,9 @@ gdm_session_record_logout (GPid                  session_pid,
+         /* Handle utmp */
+ #if defined(HAVE_GETUTXENT)
+         g_debug ("Adding or updating utmp record for logout");
++        setutxent();
+         pututxline (&session_record);
++        endutxent();
+ #elif defined(HAVE_LOGOUT)
+         logout (session_record.ut_line);
+ #endif
diff -Nru gdm3-3.28.2/debian/patches/series gdm3-3.28.2/debian/patches/series
--- gdm3-3.28.2/debian/patches/series	2018-06-05 10:58:41.000000000 +0000
+++ gdm3-3.28.2/debian/patches/series	2018-06-13 12:04:30.000000000 +0000
@@ -11,6 +11,7 @@
 libgdb-Try-to-reuse-connections-from-the-available-proxie.patch
 libgdm-Don-t-save-manager-address.patch
 libgdm-Return-NULL-on-invalid-client-instances.patch
+daemon-gdm-session-record.c-open-close-the-utmp-database.patch
 16_xserver_path.patch
 90_config_comments.patch
 91_dconf_database_path.patch