MacBook will not display on external monitor in clamshell mode
System information:
13 in. MacBook (2.4Ghz Intel 2-Core)
10.6.7
External Display connected with Apple DisplayPort VGA adapter
Apple Wireless Keyboard
Generic wireless mouse that connects to a USB stick plugged into the MacBook
This is dirving me nuts because it was working perfectly until about 2 weeks ago. I was following the pocess outlined here. http://support.apple.com/kb/HT3131
Here is what happens now:
- MacBook display and external monitor are in mirroring mode. All devices are powered on and plugged in.
- Close MacBook lid. MacBook goes to sleep. Blinking LED.
- Hit spacebar on the Apple Bluetooth keyboard. The LED changes to steady on. However, the external display never shows the desktop. I've tried Command-F1... nothing.
- If I open the lid again... the MacBook goes back to sleep.
- I then have to pull out the DisplayPort VGA adapter to wake the MacBook up again.
MacBook, Mac OS X (10.6.7)