I get a black screen on my 2nd screen
Hi, Since I got my new Mac Pro, almost every start-up of my mac,my second screen is black, The only thing I can see on it is my mouse pointer. When I push cmd+F1 it mirrors my first screen like it normally would, and then when I het cmd+F1 again it is all normal. I never had any problem with my previous Mac
I got a Mac Pro end 2013 with a 3.5 GHz 6-CoreProcessor and use OS X Yosemite 10.10.3
Any Idea on how to solve this problem?
Mac Pro