Q: External display only works with Macbook open?
I have an Acer AL2623W which works fine as an additional or main screen, but a second after you close the laptop the screen goes blank and it shows an 'input not supported' error. The Macbook stays on, it just doesn't drive the monitor alone. Re-open the Macbook and both work normally!
MacBook Pro, OS X Yosemite (10.10.2), 13" non-retina mid 2009
Posted on Feb 12, 2015 5:03 AM
Hi Folks,
Just had an idea that worked: I used LogMeIn Ignition on my iPad to control my clamshelled laptop that was generating an unacceptable display signal for the monitor. I disabled screen blanking and set the resolution for the remote session to the native resolution of the display! I am now back in business with a shut laptop and an external display!
Cheers, Siôn.
Posted on Feb 14, 2015 2:03 PM
