Automatic Power Management for Devices

If automatic power management is enabled by dtpower(1M) or power.conf(4), then all devices with a pm-components(9P) property automatically will be power managed. After each component has been idle for a default period, it will be automatically brought to its next lowest power level. The default period is calculated by the power management framework to set the entire device to its lowest power state within the system idleness threshold.

By default automatic power management is enabled on all SPARC desktop systems first shipped after July 1, 1999. This feature is disabled by default for all other systems. To determine if automatic power management is enabled on your machine, refer to the power.conf(4) man page for instructions.

dtpower(1M) or power.conf(4) may be used to override the defaults calculated by the framework.