mirror of
https://github.com/systemd/systemd
synced 2024-10-07 00:30:59 +00:00
73e97bb064
With <para><filename>…</filename></para>, we get a separate "paragraph" for each line, i.e. entries separated by empty lines. This uses up a lot of space and was only done because docbook makes it hard to insert a newline. In some other places, <literallayout> was used, but then we cannot indent the source text (because the whitespace would end up in the final page). We can get the desired result with <simplelist>. With <simplelist> the items are indented in roff output, but not in html output. In some places this looks better then no indentation, and in others it would probably be better to have no indent. But this is a minor issue and we cannot control that. (I didn't convert all spots. There's a bunch of other man pages which have two lines, e.g. an executable and service file, and it doesn't matter there so much.)
132 lines
5.9 KiB
XML
132 lines
5.9 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
|
|
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
|
|
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
|
|
<!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
|
|
|
|
<refentry id="systemd-suspend.service"
|
|
xmlns:xi="http://www.w3.org/2001/XInclude">
|
|
|
|
<refentryinfo>
|
|
<title>systemd-suspend.service</title>
|
|
<productname>systemd</productname>
|
|
</refentryinfo>
|
|
|
|
<refmeta>
|
|
<refentrytitle>systemd-suspend.service</refentrytitle>
|
|
<manvolnum>8</manvolnum>
|
|
</refmeta>
|
|
|
|
<refnamediv>
|
|
<refname>systemd-suspend.service</refname>
|
|
<refname>systemd-hibernate.service</refname>
|
|
<refname>systemd-hybrid-sleep.service</refname>
|
|
<refname>systemd-suspend-then-hibernate.service</refname>
|
|
<refname>systemd-sleep</refname>
|
|
<refpurpose>System sleep state logic</refpurpose>
|
|
</refnamediv>
|
|
|
|
<refsynopsisdiv>
|
|
<para><simplelist>
|
|
<member><filename>systemd-suspend.service</filename></member>
|
|
<member><filename>systemd-hibernate.service</filename></member>
|
|
<member><filename>systemd-hybrid-sleep.service</filename></member>
|
|
<member><filename>systemd-suspend-then-hibernate.service</filename></member>
|
|
<member><filename>/usr/lib/systemd/system-sleep</filename></member>
|
|
</simplelist></para>
|
|
</refsynopsisdiv>
|
|
|
|
<refsect1>
|
|
<title>Description</title>
|
|
|
|
<para><filename>systemd-suspend.service</filename> is a system
|
|
service that is pulled in by <filename>suspend.target</filename>
|
|
and is responsible for the actual system suspend. Similarly,
|
|
<filename>systemd-hibernate.service</filename> is pulled in by
|
|
<filename>hibernate.target</filename> to execute the actual
|
|
hibernation. Finally,
|
|
<filename>systemd-hybrid-sleep.service</filename> is pulled in by
|
|
<filename>hybrid-sleep.target</filename> to execute hybrid
|
|
hibernation with system suspend and pulled in by
|
|
<filename>suspend-then-hibernate.target</filename> to execute system suspend
|
|
with a timeout that will activate hibernate later.</para>
|
|
|
|
<para>Immediately before entering system suspend and/or
|
|
hibernation <filename>systemd-suspend.service</filename> (and the
|
|
other mentioned units, respectively) will run all executables in
|
|
<filename>/usr/lib/systemd/system-sleep/</filename> and pass two
|
|
arguments to them. The first argument will be
|
|
<literal>pre</literal>, the second either
|
|
<literal>suspend</literal>, <literal>hibernate</literal>,
|
|
<literal>hybrid-sleep</literal>, or <literal>suspend-then-hibernate</literal>
|
|
depending on the chosen action. An environment variable called <literal>SYSTEMD_SLEEP_ACTION</literal>
|
|
will be set and contain the sleep action that is processing. This is primarily helpful for
|
|
<literal>suspend-then-hibernate</literal> where the value of the variable will be <literal>suspend</literal>, <literal>hibernate</literal>,
|
|
or <literal>suspend-after-failed-hibernate</literal> in cases where hibernation has failed.
|
|
Immediately after leaving system suspend and/or hibernation the
|
|
same executables are run, but the first argument is now
|
|
<literal>post</literal>. All executables in this directory are
|
|
executed in parallel, and execution of the action is not continued
|
|
until all executables have finished.</para>
|
|
|
|
<para>Note that scripts or binaries dropped in
|
|
<filename>/usr/lib/systemd/system-sleep/</filename> are intended
|
|
for local use only and should be considered hacks. If applications
|
|
want to react to system suspend/hibernation and resume,
|
|
they should rather use the <ulink
|
|
url="https://www.freedesktop.org/wiki/Software/systemd/inhibit">Inhibitor
|
|
interface</ulink>.</para>
|
|
|
|
<para>Note that <filename>systemd-suspend.service</filename>,
|
|
<filename>systemd-hibernate.service</filename>, <filename>systemd-hybrid-sleep.service</filename>, and
|
|
<filename>systemd-suspend-then-hibernate.service</filename> should never be executed directly. Instead,
|
|
trigger system sleep with a command such as <command>systemctl suspend</command> or <command>systemctl
|
|
hibernate</command>.</para>
|
|
|
|
<para>Internally, this service will echo a string like
|
|
<literal>mem</literal> into <filename>/sys/power/state</filename>,
|
|
to trigger the actual system suspend. What exactly is written
|
|
where can be configured in the [Sleep] 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>
|
|
|
|
<refsect1>
|
|
<title>Options</title>
|
|
|
|
<para><command>systemd-sleep</command> understands the
|
|
following commands:</para>
|
|
|
|
<variablelist>
|
|
<xi:include href="standard-options.xml" xpointer="help" />
|
|
<xi:include href="standard-options.xml" xpointer="version" />
|
|
|
|
<varlistentry>
|
|
<term><option>suspend</option></term>
|
|
<term><option>hibernate</option></term>
|
|
<term><option>suspend-then-hibernate</option></term>
|
|
<term><option>hybrid-sleep</option></term>
|
|
|
|
<listitem><para>Suspend, hibernate, suspend then hibernate, or put the
|
|
system to hybrid sleep.</para>
|
|
|
|
<xi:include href="version-info.xml" xpointer="v203"/>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>See Also</title>
|
|
<para>
|
|
<citerefentry><refentrytitle>systemd-sleep.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
|
|
<citerefentry><refentrytitle>systemd-halt.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
|
|
</para>
|
|
</refsect1>
|
|
|
|
</refentry>
|