commit ab6b74f95eeb3c11a8a461f78aa5fce8a408bb4e
Author: Sam Spilsbury <sam@endlessm.com>
Date:   Fri Aug 11 14:52:13 2017 +0800

    service: Send SIGHUP to gdm on reload

diff --git a/data/gdm.service.in b/data/gdm.service.in
index fb0ffdcf..72201c1f 100644
--- a/data/gdm.service.in
+++ b/data/gdm.service.in
@@ -28,6 +28,7 @@ BusName=org.gnome.DisplayManager
 StandardOutput=syslog
 StandardError=inherit
 EnvironmentFile=-@LANG_CONFIG_FILE@
+ExecReload=/bin/kill -SIGHUP $MAINPID
 
 [Install]
 Alias=display-manager.service
