Advanced Power Management

Advanced Power Management (APM) is a feature of some computer displays, usually but not always, on laptop computers, which turns off power to the display after a preset period of inactivity to conserve electrical power. Monitors with this capability are usually referred to as "green monitors", meaning environmentally friendly.

Not to be confused with a screensaver which is software that causes the display to go black (by setting every pixel to black) to prevent burn-in.

see also ACPI

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This article (or an earlier version of it) contains material from FOLDOC, used with permission.