11a1589223
Files which are installed as-is (any .service and other unit files, .conf files, .policy files, etc), are left as is. My assumption is that SPDX identifiers are not yet that well known, so it's better to retain the extended header to avoid any doubt. I also kept any copyright lines. We can probably remove them, but it'd nice to obtain explicit acks from all involved authors before doing that.
199 lines
7.6 KiB
XML
199 lines
7.6 KiB
XML
<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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<!--
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SPDX-License-Identifier: LGPL-2.1+
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This file is part of systemd.
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Copyright 2013 Zbigniew Jędrzejewski-Szmek
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-->
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<refentry id="systemd-sleep.conf"
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xmlns:xi="http://www.w3.org/2001/XInclude">
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<refentryinfo>
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<title>systemd-sleep.conf</title>
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<productname>systemd</productname>
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<authorgroup>
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<author>
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<contrib>Developer</contrib>
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<firstname>Zbigniew</firstname>
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<surname>Jędrzejewski-Szmek</surname>
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<email>zbyszek@in.waw.pl</email>
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</author>
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</authorgroup>
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</refentryinfo>
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<refmeta>
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<refentrytitle>systemd-sleep.conf</refentrytitle>
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<manvolnum>5</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>systemd-sleep.conf</refname>
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<refname>sleep.conf.d</refname>
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<refpurpose>Suspend and hibernation configuration file</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<para><filename>/etc/systemd/sleep.conf</filename></para>
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<para><filename>/etc/systemd/sleep.conf.d/*.conf</filename></para>
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<para><filename>/run/systemd/sleep.conf.d/*.conf</filename></para>
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<para><filename>/usr/lib/systemd/sleep.conf.d/*.conf</filename></para>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para><command>systemd</command> supports four general
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power-saving modes:</para>
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<variablelist>
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<varlistentry>
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<term>suspend</term>
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<listitem><para>a low-power state
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where execution of the OS is paused,
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and complete power loss might result
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in lost data, and which is fast to
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enter and exit. This corresponds to
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suspend, standby, or freeze states as
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understood by the kernel.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term>hibernate</term>
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<listitem><para>a low-power state
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where execution of the OS is paused,
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and complete power loss does not
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result in lost data, and which might
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be slow to enter and exit. This
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corresponds to the hibernation as
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understood by the kernel.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term>hybrid-sleep</term>
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<listitem><para>a low-power state
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where execution of the OS is paused,
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which might be slow to enter, and on
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complete power loss does not result in
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lost data but might be slower to exit
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in that case. This mode is called
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suspend-to-both by the kernel.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term>suspend-then-hibernate</term>
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<listitem><para>A low power state where the system is initially suspended
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(the state is stored in RAM). If not interrupted within the delay specified by
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<command>HibernateDelaySec=</command>, the system will be woken using an RTC
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alarm and hibernated (the state is then stored on disk).
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</para></listitem>
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</varlistentry>
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</variablelist>
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<para>Settings in these files determine what strings
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will be written to
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<filename>/sys/power/disk</filename> and
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<filename>/sys/power/state</filename> by
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<citerefentry><refentrytitle>systemd-sleep</refentrytitle><manvolnum>8</manvolnum></citerefentry>
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when
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>
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attempts to suspend or hibernate the machine.</para>
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</refsect1>
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<xi:include href="standard-conf.xml" xpointer="main-conf" />
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<refsect1>
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<title>Options</title>
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<para>The following options can be configured in the
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<literal>[Sleep]</literal> section of
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<filename>/etc/systemd/sleep.conf</filename> or a
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<filename>sleep.conf.d</filename> file:</para>
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<variablelist class='systemd-directives'>
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<varlistentry>
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<term><varname>SuspendMode=</varname></term>
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<term><varname>HibernateMode=</varname></term>
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<term><varname>HybridSleepMode=</varname></term>
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<listitem><para>The string to be written to
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<filename>/sys/power/disk</filename> by,
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respectively,
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<citerefentry><refentrytitle>systemd-suspend.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-hibernate.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-hybrid-sleep.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, or
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<citerefentry><refentrytitle>systemd-suspend-then-hibernate.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
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More than one value can be specified by separating
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multiple values with whitespace. They will be tried
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in turn, until one is written without error. If
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neither succeeds, the operation will be aborted.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>SuspendState=</varname></term>
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<term><varname>HibernateState=</varname></term>
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<term><varname>HybridSleepState=</varname></term>
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<listitem><para>The string to be written to
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<filename>/sys/power/state</filename> by,
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respectively,
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<citerefentry><refentrytitle>systemd-suspend.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-hibernate.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-hybrid-sleep.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, or
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<citerefentry><refentrytitle>systemd-suspend-then-hibernate.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
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More than one value can be specified by separating
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multiple values with whitespace. They will be tried
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in turn, until one is written without error. If
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neither succeeds, the operation will be aborted.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>HibernateDelaySec=</varname></term>
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<listitem><para>The amount of time in seconds
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that will pass before the system is automatically
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put into hibernate when using
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<citerefentry><refentrytitle>systemd-suspend-then-hibernate.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
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</para></listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>Example: freeze</title>
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<para>Example: to exploit the <quote>freeze</quote> mode added
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in Linux 3.9, one can use <command>systemctl suspend</command>
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with
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<programlisting>[Sleep]
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SuspendState=freeze</programlisting></para>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<para>
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<citerefentry><refentrytitle>systemd-sleep</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-suspend.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-hibernate.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-hybrid-sleep.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-suspend-then-hibernate.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.directives</refentrytitle><manvolnum>7</manvolnum></citerefentry>
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</para>
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</refsect1>
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</refentry>
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