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.

                                                                                   LAPTOP_MODE(8)