Apple PowerBook G3 - Manual (Page 66)

66 Chapter 3
Trouble With the External Monitor?
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Nothing happened when you tried to turn on or wake the PowerBook.
Make sure that all your equipment is connected properly. Then try turning on or waking
the computer again.
Make sure that the battery is charged, or that the power adapter is plugged into both the
computer and an electrical outlet. If you are using a power strip, make sure it is turned
on.
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The computer is on, but the external monitor is dark.
Make sure that the monitor’s power cord is connected and that its power switch is on. Try
adjusting the monitor’s brightness and contrast settings. If this doesn’t work, try
restarting your computer.
Note: The screen-dimming feature in the Energy Saver control panel turns the screen
brightness down to a low level when you haven’t used the computer for a few minutes.
( You can think of dimming as display sleep.) Dimming also affects the external monitor.
When you move your finger on the trackpad or press a key on the keyboard, the
brightness is restored on both screens. For information and instructions on setting screen
dimming, see the online help, available in the Help menu.
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The PowerBook goes to sleep when you close the display.
The PowerBook display must be open when using an external monitor.
Disconnecting an External Monitor
1 Make sure your computer is shut down or in sleep.
2 Make sure your monitor is switched off.
3 Disconnect the monitor cable (for a VGA-style monitor) or monitor adapter (for an Apple
monitor) from the external monitor port on the computer’s back panel.