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3802a3d3 | 1 | <?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*--> |
19adb8a3 | 2 | <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" |
12b42c76 | 3 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> |
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4 | |
5 | <!-- | |
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6 | SPDX-License-Identifier: LGPL-2.1+ |
7 | ||
5de0ccff | 8 | This file is part of systemd. |
19adb8a3 | 9 | |
5de0ccff | 10 | Copyright 2013 Zbigniew Jędrzejewski-Szmek |
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11 | --> |
12 | ||
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13 | <refentry id="systemd-sleep.conf" |
14 | xmlns:xi="http://www.w3.org/2001/XInclude"> | |
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15 | <refentryinfo> |
16 | <title>systemd-sleep.conf</title> | |
17 | <productname>systemd</productname> | |
18 | ||
19 | <authorgroup> | |
20 | <author> | |
21 | <contrib>Developer</contrib> | |
22 | <firstname>Zbigniew</firstname> | |
23 | <surname>Jędrzejewski-Szmek</surname> | |
24 | <email>zbyszek@in.waw.pl</email> | |
25 | </author> | |
26 | </authorgroup> | |
27 | </refentryinfo> | |
28 | ||
29 | <refmeta> | |
30 | <refentrytitle>systemd-sleep.conf</refentrytitle> | |
31 | <manvolnum>5</manvolnum> | |
32 | </refmeta> | |
33 | ||
34 | <refnamediv> | |
35 | <refname>systemd-sleep.conf</refname> | |
778b6a3f | 36 | <refname>sleep.conf.d</refname> |
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37 | <refpurpose>Suspend and hibernation configuration file</refpurpose> |
38 | </refnamediv> | |
39 | ||
40 | <refsynopsisdiv> | |
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41 | <para><filename>/etc/systemd/sleep.conf</filename></para> |
42 | <para><filename>/etc/systemd/sleep.conf.d/*.conf</filename></para> | |
778b6a3f | 43 | <para><filename>/run/systemd/sleep.conf.d/*.conf</filename></para> |
12b42c76 | 44 | <para><filename>/usr/lib/systemd/sleep.conf.d/*.conf</filename></para> |
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45 | </refsynopsisdiv> |
46 | ||
47 | <refsect1> | |
48 | <title>Description</title> | |
49 | ||
c58493c0 | 50 | <para><command>systemd</command> supports four general |
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51 | power-saving modes:</para> |
52 | ||
53 | <variablelist> | |
54 | <varlistentry> | |
55 | <term>suspend</term> | |
56 | ||
57 | <listitem><para>a low-power state | |
58 | where execution of the OS is paused, | |
59 | and complete power loss might result | |
60 | in lost data, and which is fast to | |
61 | enter and exit. This corresponds to | |
62 | suspend, standby, or freeze states as | |
63 | understood by the kernel. | |
64 | </para></listitem> | |
65 | </varlistentry> | |
66 | ||
67 | <varlistentry> | |
68 | <term>hibernate</term> | |
69 | ||
70 | <listitem><para>a low-power state | |
71 | where execution of the OS is paused, | |
72 | and complete power loss does not | |
73 | result in lost data, and which might | |
74 | be slow to enter and exit. This | |
75 | corresponds to the hibernation as | |
76 | understood by the kernel. | |
77 | </para></listitem> | |
78 | </varlistentry> | |
79 | ||
80 | <varlistentry> | |
81 | <term>hybrid-sleep</term> | |
82 | ||
83 | <listitem><para>a low-power state | |
84 | where execution of the OS is paused, | |
85 | which might be slow to enter, and on | |
86 | complete power loss does not result in | |
87 | lost data but might be slower to exit | |
88 | in that case. This mode is called | |
89 | suspend-to-both by the kernel. | |
90 | </para></listitem> | |
91 | </varlistentry> | |
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92 | |
93 | <varlistentry> | |
e68c79db | 94 | <term>suspend-then-hibernate</term> |
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95 | |
96 | <listitem><para>A low power state where the system is initially suspended | |
97 | (the state is stored in RAM). If not interrupted within the delay specified by | |
98 | <command>HibernateDelaySec=</command>, the system will be woken using an RTC | |
99 | alarm and hibernated (the state is then stored on disk). | |
100 | </para></listitem> | |
101 | </varlistentry> | |
102 | ||
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103 | </variablelist> |
104 | ||
778b6a3f | 105 | <para>Settings in these files determine what strings |
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106 | will be written to |
107 | <filename>/sys/power/disk</filename> and | |
108 | <filename>/sys/power/state</filename> by | |
109 | <citerefentry><refentrytitle>systemd-sleep</refentrytitle><manvolnum>8</manvolnum></citerefentry> | |
110 | when | |
111 | <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry> | |
112 | attempts to suspend or hibernate the machine.</para> | |
113 | </refsect1> | |
114 | ||
e93549ef | 115 | <xi:include href="standard-conf.xml" xpointer="main-conf" /> |
778b6a3f | 116 | |
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117 | <refsect1> |
118 | <title>Options</title> | |
119 | ||
120 | <para>The following options can be configured in the | |
121 | <literal>[Sleep]</literal> section of | |
12b42c76 | 122 | <filename>/etc/systemd/sleep.conf</filename> or a |
778b6a3f | 123 | <filename>sleep.conf.d</filename> file:</para> |
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124 | |
125 | <variablelist class='systemd-directives'> | |
126 | <varlistentry> | |
127 | <term><varname>SuspendMode=</varname></term> | |
128 | <term><varname>HibernateMode=</varname></term> | |
129 | <term><varname>HybridSleepMode=</varname></term> | |
130 | ||
131 | <listitem><para>The string to be written to | |
132 | <filename>/sys/power/disk</filename> by, | |
133 | respectively, | |
134 | <citerefentry><refentrytitle>systemd-suspend.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, | |
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135 | <citerefentry><refentrytitle>systemd-hibernate.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, |
136 | <citerefentry><refentrytitle>systemd-hybrid-sleep.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, or | |
e68c79db | 137 | <citerefentry><refentrytitle>systemd-suspend-then-hibernate.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>. |
0c722554 | 138 | More than one value can be specified by separating |
252094eb | 139 | multiple values with whitespace. They will be tried |
19adb8a3 | 140 | in turn, until one is written without error. If |
0c722554 | 141 | neither succeeds, the operation will be aborted. |
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142 | </para></listitem> |
143 | </varlistentry> | |
144 | ||
145 | <varlistentry> | |
146 | <term><varname>SuspendState=</varname></term> | |
147 | <term><varname>HibernateState=</varname></term> | |
148 | <term><varname>HybridSleepState=</varname></term> | |
149 | ||
150 | <listitem><para>The string to be written to | |
151 | <filename>/sys/power/state</filename> by, | |
152 | respectively, | |
153 | <citerefentry><refentrytitle>systemd-suspend.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, | |
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154 | <citerefentry><refentrytitle>systemd-hibernate.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, |
155 | <citerefentry><refentrytitle>systemd-hybrid-sleep.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, or | |
e68c79db | 156 | <citerefentry><refentrytitle>systemd-suspend-then-hibernate.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>. |
0c722554 | 157 | More than one value can be specified by separating |
252094eb | 158 | multiple values with whitespace. They will be tried |
19adb8a3 | 159 | in turn, until one is written without error. If |
0c722554 | 160 | neither succeeds, the operation will be aborted. |
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161 | </para></listitem> |
162 | </varlistentry> | |
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163 | <varlistentry> |
164 | <term><varname>HibernateDelaySec=</varname></term> | |
165 | ||
166 | <listitem><para>The amount of time in seconds | |
167 | that will pass before the system is automatically | |
168 | put into hibernate when using | |
e68c79db | 169 | <citerefentry><refentrytitle>systemd-suspend-then-hibernate.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>. |
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170 | </para></listitem> |
171 | </varlistentry> | |
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172 | </variablelist> |
173 | </refsect1> | |
174 | ||
175 | <refsect1> | |
176 | <title>Example: freeze</title> | |
177 | ||
178 | <para>Example: to exploit the <quote>freeze</quote> mode added | |
179 | in Linux 3.9, one can use <command>systemctl suspend</command> | |
180 | with | |
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181 | <programlisting>[Sleep] |
182 | SuspendState=freeze</programlisting></para> | |
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183 | </refsect1> |
184 | ||
185 | <refsect1> | |
186 | <title>See Also</title> | |
187 | <para> | |
188 | <citerefentry><refentrytitle>systemd-sleep</refentrytitle><manvolnum>8</manvolnum></citerefentry>, | |
189 | <citerefentry><refentrytitle>systemd-suspend.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, | |
190 | <citerefentry><refentrytitle>systemd-hibernate.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, | |
191 | <citerefentry><refentrytitle>systemd-hybrid-sleep.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, | |
e68c79db | 192 | <citerefentry><refentrytitle>systemd-suspend-then-hibernate.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, |
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193 | <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, |
194 | <citerefentry><refentrytitle>systemd.directives</refentrytitle><manvolnum>7</manvolnum></citerefentry> | |
195 | </para> | |
196 | </refsect1> | |
197 | ||
198 | </refentry> |