I have a Quad Core Mac Pro (2013) with 2x Thunderbolt Displays attached. I have recently run the March 2016 Firmware Update that is suppose to resolve a Black Screen issue (which I had not experienced with my 2 displays), only to find that after I ran the update I now have 1 display that is NOW experiencing a Black screen.
The mac still shows 2 displays connected, so it definitely is the black screen issue.
Why do Apple say install this update only to make things worse.
I really need a solution for this.
Mac Pro (Late 2013), OS X El Capitan (10.11.3)
