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)