<filename>/sys/power/state</filename>, to trigger the
actual system suspend. What exactly is written
where can be configured in the <literal>[Sleep]</literal>
- section of <filename>/etc/systemd/sleep.conf</filename>.
+ section of <filename>/etc/systemd/sleep.conf</filename> or a
+ <filename>sleep.conf.d</filename> file.
See <citerefentry><refentrytitle>systemd-sleep.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
</para>
</refsect1>