On Sat, 24 Mar 2018 at 15:23:28 +0000, Russel Winder wrote: > With the update to 3.28 a newly rebooted machine that starts GDM will suspend > after about 15 mins unless a > user logs in to the console.
It's 20 minutes, and is a result of the defaults in gnome-settings-daemon 3.28 changing to comply with European and American power-saving regulations. > there appears to be no way of switching the GDM suspend behaviour off There's currently no UI for it, but if you append this to /etc/gdm3/greeter.dconf-defaults: [org/gnome/settings-daemon/plugins/power] sleep-inactive-ac-timeout=0 sleep-inactive-battery-timeout=0 then reboot (or run "service gdm3 reload" as root), that should put the GDM session back to the pre-3.28 behaviour. The values are in seconds, with 0 meaning never; please adjust as needed. smcv