PowerBook display
The screen went blank.
mScreen dimming may be on. Move the pointer to restore the screen’s brightness.
mThe computer may have gone to sleep. Press any key (except Caps Lock) on the keyboard to wake it.
mThe battery may need recharging. Plug in the power adapter, let the battery charge for a few minutes, and then try to wake or start up the computer again. (Or use the optional recharger.)
The screen flickers.
mAdjust the brightness control (¤) to the right of the display.
mOpen the Monitors control panel and set the computer to display fewer colors or grays.
mIf tilting the display affects the flickering, there may be a loose cable. Contact an
The computer freezes when screen dimming takes effect.
mScreen dimming does not work with some programs. Open the PowerBook control panel and turn off screen dimming.
External monitor (connected to a dock)
The monitor remains dark.
mShut down the Macintosh PowerBook, then make sure the monitor is connected to the dock, plugged into an active outlet, and turned on. (Most monitors have a light on the front panel to show whether they are on.)
The monitor is on, but no image appears.
mScreen dimming may be on. Move the pointer to restore the screen’s brightness.
mAdjust the monitor’s brightness and contrast controls.
mOpen the Monitors control panel and press the Identify button. The number on each monitor icon should appear on the corresponding screen. If not, there may be a problem with the connection, or the monitor may need repair.
Tips and Troubleshooting | 95 |
