On Tue, Mar 14, 2023 at 6:24 PM Tomasz Torcz <tomek@pipebreaker.pl> wrote:
  I think this should work; for checking current settings:
# sudo -u gdm gsettings get org.gnome.settings-daemon.plugins.power sleep-inactive-ac-type
'suspend'

  To disable:
  sudo -u gdm gsettings set org.gnome.settings-daemon.plugins.power sleep-inactive-ac-type 'nothing'

This isn't completely correct, it complains about a missing dbus session. But I tried to document the working commands in:
https://discussion.fedoraproject.org/t/gnome-suspends-after-15-minutes-of-user-inactivity-even-on-ac-power/79801