Power Management; Power Management Modes; Display Standby Mode - Acer TravelMate 720 User Manual

Power Management

This computer has a built-in power management unit that
monitors system activity. System activity refers to any
activity involving one or more of the following devices:
keyboard, mouse, floppy drive, hard disk, peripherals
connected to the serial and parallel ports, and video
memory. If no activity is detected for a period of time (called
an inactivity time-out), the computer stops some or all of
these devices in order to conserve energy.
This computer employs a power management scheme that
allows for maximum power conservation and maximum
performance at the same time.

Power Management Modes

Display Standby Mode

Screen activity is determined by the keyboard, the built-in
touchpad, and an external PS/2 pointing device. If these
devices are idle for the period specified by the LCD
backlight Timeout value, the display shuts off until you
press a key or move the touchpad or external mouse.
"Automatic Dim" Feature
The computer has a unique "automatic dim" power-saving
feature. When the computer is using AC power and you
disconnect the AC adapter from the computer, it
automatically dims the LCD backlight to save power. If you
reconnect AC power to the computer, it automatically
adjusts the LCD backlight to a brighter level.
Chapter 2 Operating on Battery Power

Power Management

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