Boot Camp Beta: MacBook, MacBook Pro - Built-in display stays on after lid is closed

Issue or symptom

While running Microsoft Windows XP using Boot Camp Beta, the built-in display of your MacBook or MacBook Pro computer may remain on when the display lid is closed and an external display is connected.

Solution

To disable the internal display while running Windows XP:

1. From the Start menu, select Control Panel.
2. Open Display settings.
3. Click the Settings tab, then Advanced, to bring up the ATI settings.
4. Click the Displays tab.
5. Click the "disable flat panel display" button under Panel.
6. Click Apply.

The built-in display of your MacBook or MacBook Pro should now be disabled while in Windows XP. It is expected behavior for the display to be off when the lid is closed.

Important: Information about products not manufactured by Apple is provided for information purposes only and does not constitute Apple's recommendation or endorsement. Please contact the vendor for additional information.