Provided by: powersaved_0.12.15-0ubuntu1_i386
powersaved - supports APM and ACPI: three battery states, proper
standby/suspend, cpu frequency scaling and other power management tasks
powersaved [ options ]
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).
-v Set the debug level, allowed values: 0-31
16 Debug e.g. Error + Warning: 1 + 2 -> 3 (sum up wanted
levels like in chmod)
-x Set the path to executables that will be executed depending on
the events configuration file (default:
-y Set the path to executables that will be executed for internal
events and by the event scripts (default: /usr/lib/powersave)
-d Daemonize process
The file powersave daemon gets informed about ACPI events.
Default is /proc/acpi/event. You may want to provide the socket
file of the acpid to access ACPI events. This allows accessing
ACPI events for multiple services/applications.
-c DIR Sets the configuration directory (default /etc/powersave).
General configuration files are:
-s DIR Setcs the directory for Scheme configuration files (new ones
could be added and switched to, default is /etc/powersave):
scheme_performance (default scheme when working on AC power)
scheme_powersave (default scheme when working on battery
-n Disables CPU frequency scaling. In case this feature may cause
Overrides the enablement of suspend to RAM. This can be used to
determine if the machine is capable of suspending to RAM via an
external program (e.g. s2ram) in the init script. Passing 0 as
value disables suspend to RAM, anything else enables suspend to
RAM. If the config variable DISABLE_USER_SUSPEND2RAM is set to
"yes", this parameter is silently ignored.
-h Print syntax
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. On SUSE systems, you can use
the YaST power management module. On other systems, you can have a look
in the config files for extended configuration (see below).
User management is now solved through DBus. A configuration file
should be placed into the DBus config directory (e.g.
/etc/dbus-1/system.d) called powersaved.conf. Use this file to manage
which users are allowed to contact the powersave service.
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
Standby and Suspend to RAM using ACPI is still experimental and may
fail on some machines. See /var/log/susp*.log and /var/log/standby.log
(and the fail.
powersave daemon has been written by Thomas Renninger
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.
powersave(8) /etc/powersave/* /usr/share/doc/powersaved