The power.conf file in the /etc directory lets you set the configuration for managing system power. It also enables you to set display power configurations that are followed for that display when a CDE or OpenWindows desktop isn't present. (See Chapter 2, Managing Monitor Power for details on managing display power in those windowing environments.)
# 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 9:00 9:00 default statefile /.CPR
In the /etc/power.conf file, there are entries for Logical Dependent(s). Each is a physical device (such as a mouse) that has activity that is related to another device (such as a frame buffer) but is not physically attached to it.
If a logical dependent device is active, then the main device is considered active as well. This affects idle times for the main device.