Apple PowerBook File Assistant - Manual (Page 26)

Extending your PowerBook’s battery life
Controlling automatic screen dimming
To save power and increase the life of the screen, your PowerBook’s screen
dims automatically when the PowerBook is left idle. Screen dimming also
conserves power, since the screen’s backlight is the single biggest consumer of
your computer’s battery power.
You can specify the delay before the screen is dimmed. You set this option in
the PowerBook Display control panel.
1 Choose Control Panels from the Apple (K) menu and open the PowerBook Display
control panel:
The PowerBook Display control panel appears.
2 Click the On button under Screen Dimming.
3 Drag the slider to set the delay.
If you want to keep the screen from dimming when the power adapter is
plugged in, click the checkbox labeled ‘‘Don’t dim when plugged in.”
4 Close the PowerBook Display control panel.
20 C H A P T E R T H R E E
If your PowerBook supports mirroring, then
this option is available. See the user’s
guide that came with your PowerBook for
information on mirroring.