NAME¶
/usr/sbin/laptop_mode - apply laptop mode settings
SYNOPSIS¶
/usr/sbin/laptop_mode [ cmd ] [ force ]
DESCRIPTION¶
This manual page documents briefly the
/usr/sbin/laptop_mode command.
laptop_mode is a program that applies the settings given in the
/etc/laptop-mode/laptop-mode.conf configuration file. The primary use
is to control the laptop mode feature included in Linux kernels with versions
2.6.6 and higher, and 2.4.23 and higher. This feature increases battery life
by letting your hard drive spin down. This is achieved by grouping disk write
activity into "chunks" that are spaced at larger intervals than they
normally would be. In addition to supporting the Linux kernel's laptop mode
feature,
/usr/sbin/laptop_mode also supports various power saving
modules which are configured through configuration files in the
/etc/laptop-mode/conf.d directory.
It is not recommended to call
/usr/sbin/laptop_mode directly to start or
stop laptop mode, except in hardware event handlers. To apply new
configuration settings from
laptop-mode.conf, call the laptop-mode
service init script with the reload parameter.
COMMANDS¶
Specify
force as the second parameter to force laptop_mode to re-apply a
state even if the computer is already in that state. These are the values that
are allowed for
cmd :
- auto
- Enable or disable laptop mode based on the current power state. Note that
this will not do anything if the laptop-mode service has not been
started!
- status
- Display a status report about everything that laptop_mode affects.
SEE ALSO¶
laptop-mode.conf(8).
AUTHOR¶
This manual page was written by Bart Samwel (bart@samwel.tk) for the
Debian system (but may be used by others). Permission is granted to
copy, distribute and/or modify this document under the terms of the GNU
General Public License, Version 2 any later version published by the Free
Software Foundation.
On Debian systems, the complete text of the GNU General Public License can be
found in /usr/share/common-licenses/GPL.