POWERSAVED(8)

NAME
powersaved - supports APM and ACPI: three battery states, proper standby/suspend, cpu frequency scaling and other power management tasks

SYNOPSIS
powersaved [ options ]

DESCRIPTION
Daemon that waits for apm and acpi events or for socket connections from an authorized user. It may also generate self defined events while polling the hardware (battery, cpu, temperature).

OPTIONS

-v  Set the debug level, allowed values: 0-31 1 Error 2 Warning 4 Diag 8 Info 16 Debug e.g. Error + Warning: 1 + 2 -> 3 (sum up wanted levels like in chmod)

-x  Set path to executables that will be executed depending on the events configuration file (default: /usr/lib/powersave/scripts)

-d  Daemonize process

-a  Set your preferred user management: all - everybody resmgr - managed by resmgr package group - only members of group POWERSAVED_PM_GROUP (see powersave.conf) root - only root is allowed to connect to the daemon over the socket interface

-n  Disables CPU frequency scaling. In case this feature may cause trouble.

-a {all|resmgr|group}
    Manages who is allowed to communicate with the daemon. (e.g. through the powersave/kpowersave binary). all: Everybody is allowed resmgr: User management is controlled by the resmgr (also see man resmgr and /etc/resmgr.conf) group: Only people who are members of the powersave group (group can be changed in /etc/powersave.conf) are allowed to contact the daemon. If -a is not given, only root is allowed to use the socket connection to the daemon.

-h  Print syntax

NOTICE
Because some features are still experimental they are not enabled by default (e.g. standby/suspend, ACPI battery notification). You also may want to tune the daemon for your needs. Use the YAST power management module or have a look in the config files for extended configuration (see below). There may be weird bugs which result from ACPI BIOS errors of machines. Please check the /proc/acpi directory and dmesg output for any acpi errors. Contact your hardware vendor and install the newest BIOS update.

BUGS
Standby/Suspend using ACPI is still experimental and may fail on some machines. See /var/log/susp*.log and /var/log/standby.log (and the fail.

AUTHOR
The powersave daemon has been written by Thomas Renninger <mail@renninger.de>

Inspiration and code parts partly come from the acpid, apmd and cpuspeed (former cpufreqd implemented by Carl Thompson) packages. Many thanks to all developers who helped to create this software.

SEE ALSO
powersave(8) /etc/sysconfig/powersave/* /usr/share/doc/packages/powersave