Using Power Management

Changing the Idleness Definition

You can change the idleness definition for a system from the default by adding entries to the /etc/power.conf file. These entries change the thresholds for certain system operations that could occur on a system that was still considered inactive:

You cannot, however, change the threshold for keyboard or mouse activity. Any activity with these devices ends the period of idleness for a system.

For example, you can revise your power.conf file to change the idleness definition for a system so that it is still considered idle if:

The resulting /etc/power.conf file appears like the following:

# Power Management Configuration File
# Putting an entry in this file will only be effective if the 
# driver for the device supports device power management. 
# After the file is modified, pmconfig(1M) command must be
# executed to activate the new change.
# Fields must be separated by white space or semicolons.
# Note that physical dependents are automatically considered
# by the power management framework.

# Name           Threshold(s)       Logical Dependent(s)
/dev/kbd         1800
/dev/mouse       1800

# NOTE: The entries below are only used when no window
# system is running. When running the window system, monitor
# power management is done by the screen saver functions.

/dev/fb          0 0         /dev/kbd     /dev/mouse

# Auto-Shutdown  Idle(min)  Start/finish(hh:mm)  Behavior
autoshutdown     30          15:00 8:00           default

statefile        /.CPR

ttychars            400
diskreads           10
nfsreqs             5
loadaverage         0.1