5 Replies Latest reply: Apr 23, 2012 7:01 PM by vinumber
P&L Level 1 (0 points)

When I plug in my external display via a mini-display port to VGA converter (Apple issued), my 2011 Macbook air detects the displays presence, but only occasionally will display a picture.


Have tried:

  1. Powering up with the display plugged in
  2. Unplugging and then plugging back in the VGA connector and/or the Mini-display port connector
  3. Fiddling with the display settings in "Settings > Displays"
  4. Shouting at the computer


The last time I got it working, the display worked until I put the screens (not the computer) to sleep to effectively lock my mac (password on wakeup). When I woke the display back up, only the macbook air display woke up.


I'm pretty sure it is not the port or the connector as the external display works fine with my bootcamp boot of Windows 7 64bit on the same machine. It just doesn't work properly in Mac OS Lion.


I can't find the equivilent of F7 on the mac as that has now been replaced with the music control keys. fn + F7 doesn't do anything.


What do I need to do??

MacBook Air, Mac OS X (10.7), 13" 1.8ghz i7