Managing power states in a computer system

摘要

A computer system having first and second low power states includes a controller (such as a BIOS routine) that can generate a request to transition to the first low power state (e.g., Suspend state defined in the Advanced Power Management or APM. Standard) in response to activation of predefined events (e.g., a time-out event or a user-initiated event). A program receiving the request can deny the request and instead causes the system to transition to a second low power state (e.g., the APM Standby state).