kristyleigh93

Q: How to change or reset external display settings?

I was playing around with the external display settings (while it was plugged in) to try and get the sizing right. Unfortunately I clicked on 4096x2160.

Now when I plug the external display in, my macbook screen goes black and just shows my desktop icons (no open windows) and the external display shows thin coloured lines. Now I can't change the settings at all because I can't see the window where you change it. Does anyone know how to change or reset the settings without the external display plugged in?

MacBook Pro with Retina display

Posted on Jul 20, 2015 2:06 AM