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311 lines
13 KiB
XML
311 lines
13 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
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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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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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-->
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<refentry id="logind.conf" conditional='ENABLE_LOGIND'
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xmlns:xi="http://www.w3.org/2001/XInclude">
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<refentryinfo>
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<title>logind.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>Lennart</firstname>
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<surname>Poettering</surname>
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<email>lennart@poettering.net</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>logind.conf</refentrytitle>
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<manvolnum>5</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>logind.conf</refname>
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<refname>logind.conf.d</refname>
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<refpurpose>Login manager configuration files</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<para><filename>/etc/systemd/logind.conf</filename></para>
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<para><filename>/etc/systemd/logind.conf.d/*.conf</filename></para>
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<para><filename>/run/systemd/logind.conf.d/*.conf</filename></para>
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<para><filename>/usr/lib/systemd/logind.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>These files configure various parameters of the systemd
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login manager,
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<citerefentry><refentrytitle>systemd-logind.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
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</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>All options are configured in the
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<literal>[Login]</literal> section:</para>
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<variablelist>
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<varlistentry>
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<term><varname>NAutoVTs=</varname></term>
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<listitem><para>Takes a positive integer. Configures how many
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virtual terminals (VTs) to allocate by default that, when
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switched to and are previously unused,
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<literal>autovt</literal> services are automatically spawned
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on. These services are instantiated from the template unit
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<filename>autovt@.service</filename> for the respective VT TTY
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name, for example, <filename>autovt@tty4.service</filename>.
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By default, <filename>autovt@.service</filename> is linked to
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<filename>getty@.service</filename>. In other words, login
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prompts are started dynamically as the user switches to unused
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virtual terminals. Hence, this parameter controls how many
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login <literal>gettys</literal> are available on the VTs. If a
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VT is already used by some other subsystem (for example, a
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graphical login), this kind of activation will not be
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attempted. Note that the VT configured in
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<varname>ReserveVT=</varname> is always subject to this kind
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of activation, even if it is not one of the VTs configured
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with the <varname>NAutoVTs=</varname> directive. Defaults to
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6. When set to 0, automatic spawning of
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<literal>autovt</literal> services is
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disabled.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>ReserveVT=</varname></term>
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<listitem><para>Takes a positive integer. Identifies one
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virtual terminal that shall unconditionally be reserved for
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<filename>autovt@.service</filename> activation (see above).
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The VT selected with this option will be marked busy
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unconditionally, so that no other subsystem will allocate it.
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This functionality is useful to ensure that, regardless of how
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many VTs are allocated by other subsystems, one login
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<literal>getty</literal> is always available. Defaults to 6
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(in other words, there will always be a
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<literal>getty</literal> available on Alt-F6.). When set to 0,
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VT reservation is disabled.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>KillUserProcesses=</varname></term>
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<listitem><para>Takes a boolean argument. Configures whether
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the processes of a user should be killed when the user
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completely logs out (i.e. after the user's last session
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ended). Defaults to <literal>no</literal>.</para>
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<para>Note that setting <varname>KillUserProcesses=1</varname>
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will break tools like
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<citerefentry project='die-net'><refentrytitle>screen</refentrytitle><manvolnum>1</manvolnum></citerefentry>.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>KillOnlyUsers=</varname></term>
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<term><varname>KillExcludeUsers=</varname></term>
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<listitem><para>These settings take space-separated lists of
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usernames that influence the effect of
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<varname>KillUserProcesses=</varname>. If not empty, only
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processes of users listed in <varname>KillOnlyUsers=</varname>
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will be killed when they log out entirely. Processes of users
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listed in <varname>KillExcludeUsers=</varname> are excluded
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from being killed. <varname>KillExcludeUsers=</varname>
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defaults to <literal>root</literal> and takes precedence over
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<varname>KillOnlyUsers=</varname>, which defaults to the empty
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list.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>IdleAction=</varname></term>
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<listitem><para>Configures the action to take when the system
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is idle. Takes one of
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<literal>ignore</literal>,
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<literal>poweroff</literal>,
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<literal>reboot</literal>,
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<literal>halt</literal>,
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<literal>kexec</literal>,
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<literal>suspend</literal>,
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<literal>hibernate</literal>,
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<literal>hybrid-sleep</literal>, and
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<literal>lock</literal>.
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Defaults to <literal>ignore</literal>.</para>
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<para>Note that this requires that user sessions correctly
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report the idle status to the system. The system will execute
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the action after all sessions report that they are idle, no
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idle inhibitor lock is active, and subsequently, the time
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configured with <varname>IdleActionSec=</varname> (see below)
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has expired.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>IdleActionSec=</varname></term>
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<listitem><para>Configures the delay after which the action
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configured in <varname>IdleAction=</varname> (see above) is
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taken after the system is idle.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>InhibitDelayMaxSec=</varname></term>
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<listitem><para>Specifies the maximum time a system shutdown
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or sleep request is delayed due to an inhibitor lock of type
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<literal>delay</literal> being active before the inhibitor is
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ignored and the operation executes anyway. Defaults to
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5.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>HandlePowerKey=</varname></term>
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<term><varname>HandleSuspendKey=</varname></term>
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<term><varname>HandleHibernateKey=</varname></term>
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<term><varname>HandleLidSwitch=</varname></term>
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<term><varname>HandleLidSwitchDocked=</varname></term>
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<listitem><para>Controls whether logind shall handle the
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system power and sleep keys and the lid switch to trigger
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actions such as system power-off or suspend. Can be one of
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<literal>ignore</literal>,
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<literal>poweroff</literal>,
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<literal>reboot</literal>,
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<literal>halt</literal>,
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<literal>kexec</literal>,
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<literal>suspend</literal>,
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<literal>hibernate</literal>,
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<literal>hybrid-sleep</literal>, and
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<literal>lock</literal>.
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If <literal>ignore</literal>, logind will never handle these
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keys. If <literal>lock</literal>, all running sessions will be
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screen-locked; otherwise, the specified action will be taken
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in the respective event. Only input devices with the
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<literal>power-switch</literal> udev tag will be watched for
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key/lid switch events. <varname>HandlePowerKey=</varname>
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defaults to <literal>poweroff</literal>.
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<varname>HandleSuspendKey=</varname> and
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<varname>HandleLidSwitch=</varname> default to
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<literal>suspend</literal>.
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<varname>HandleLidSwitchDocked=</varname> defaults to
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<literal>ignore</literal>.
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<varname>HandleHibernateKey=</varname> defaults to
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<literal>hibernate</literal>. If the system is inserted in a
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docking station, or if more than one display is connected, the
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action specified by <varname>HandleLidSwitchDocked=</varname>
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occurs; otherwise the <varname>HandleLidSwitch=</varname>
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action occurs.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>PowerKeyIgnoreInhibited=</varname></term>
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<term><varname>SuspendKeyIgnoreInhibited=</varname></term>
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<term><varname>HibernateKeyIgnoreInhibited=</varname></term>
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<term><varname>LidSwitchIgnoreInhibited=</varname></term>
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<listitem><para>Controls whether actions triggered by the
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power and sleep keys and the lid switch are subject to
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inhibitor locks. These settings take boolean arguments. If
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<literal>no</literal>, the inhibitor locks taken by
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applications in order to block the requested operation are
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respected. If <literal>yes</literal>, the requested operation
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is executed in any case.
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<varname>PowerKeyIgnoreInhibited=</varname>,
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<varname>SuspendKeyIgnoreInhibited=</varname> and
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<varname>HibernateKeyIgnoreInhibited=</varname> default to
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<literal>no</literal>.
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<varname>LidSwitchIgnoreInhibited=</varname> defaults to
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<literal>yes</literal>. This means that the lid switch does
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not respect suspend blockers by default, but the power and
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sleep keys do. </para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>HoldoffTimeoutSec=</varname></term>
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<listitem><para>Specifies the timeout after system startup or
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system resume in which systemd will hold off on reacting to
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LID events. This is required for the system to properly
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detect any hotplugged devices so systemd can ignore LID events
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if external monitors, or docks, are connected. If set to 0,
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systemd will always react immediately, possibly before the
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kernel fully probed all hotplugged devices. This is safe, as
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long as you do not care for systemd to account for devices
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that have been plugged or unplugged while the system was off.
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Defaults to 30s.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>RuntimeDirectorySize=</varname></term>
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<listitem><para>Sets the size limit on the
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<varname>$XDG_RUNTIME_DIR</varname> runtime directory for each
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user who logs in. Takes a size in bytes, optionally suffixed
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with the usual K, G, M, and T suffixes, to the base 1024
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(IEC). Alternatively, a numerical percentage suffixed by
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<literal>%</literal> may be specified, which sets the size
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limit relative to the amount of physical RAM. Defaults to 10%.
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Note that this size is a safety limit only. As each runtime
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directory is a tmpfs file system, it will only consume as much
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memory as is needed. </para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>RemoveIPC=</varname></term>
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<listitem><para>Controls whether System V and POSIX IPC
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objects belonging to the user shall be removed when the user
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fully logs out. Takes a boolean argument. If enabled, the user
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may not consume IPC resources after the last of the user's
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sessions terminated. This covers System V semaphores, shared
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memory and message queues, as well as POSIX shared memory and
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message queues. Note that IPC objects of the root user are
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excluded from the effect of this setting. Defaults to
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<literal>yes</literal>.</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>See Also</title>
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<para>
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-logind.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>loginctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-system.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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</para>
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</refsect1>
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</refentry>
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