View source for HowTo Prevent A Laptop Lid Close Suspension

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= Overview =
This page demonstrates how one can shut the lid of a laptop computer running NST and still have NST run without being suspended. This is especially useful when NST is booted in console mode. The '''[https://www.freedesktop.org/software/systemd/man/systemd-logind.service.html systemd-logind.service]''' can be configured to "'''ignore'''" the ''suspension'' system power action. This '''[https://www.freedesktop.org/software/systemd/man/systemd.html systemd]''' service handles various hardware state system power functionality.

== Edit Configuration File for systemd-logind.service ==
The '''systemd-logind.service''' has a configuration file: "'''[https://www.freedesktop.org/software/systemd/man/logind.conf.html /etc/systemd/logind.conf]'''" that contains an entry for controlling the system power when the lid switch is in the '''Closed''' position. If one wants to allow an NST system running on a laptop computer not to enter the '''Suspension''' power state, then the '''HandleLidSwitch''' entry needs to be set to: "'''ignore'''".

The '''HandleLidSwitch''' entry is set to: "'''ignore'''" in the listing below for file: "'''/etc/systemd/logind.conf'''"

<pre class="programListing">
[root@shopper2 ~]# cat /etc/systemd/logind.conf 
#  This file is part of systemd.
#
#  systemd is free software; you can redistribute it and/or modify it
#  under the terms of the GNU Lesser General Public License as published by
#  the Free Software Foundation; either version 2.1 of the License, or
#  (at your option) any later version.
#
# Entries in this file show the compile time defaults.
# You can change settings by editing this file.
# Defaults can be restored by simply deleting this file.
#
# See logind.conf(5) for details.

[Login]
#NAutoVTs=6
#ReserveVT=6
#KillUserProcesses=no
#KillOnlyUsers=
#KillExcludeUsers=root
#InhibitDelayMaxSec=5
#HandlePowerKey=poweroff
#HandleSuspendKey=suspend
#HandleHibernateKey=hibernate
HandleLidSwitch=ignore
#HandleLidSwitchDocked=ignore
#PowerKeyIgnoreInhibited=no
#SuspendKeyIgnoreInhibited=no
#HibernateKeyIgnoreInhibited=no
#LidSwitchIgnoreInhibited=yes
#HoldoffTimeoutSec=30s
#IdleAction=ignore
#IdleActionSec=30min
#RuntimeDirectorySize=10%
#RemoveIPC=yes
#InhibitorsMax=8192
#SessionsMax=8192
#UserTasksMax=33%
[root@shopper2 ~]#
</pre>