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How to get DisplayPort 1.2 working with Sierra

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Dec 24, 2015
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155
Motherboard
Asus Maximus X Code Z-370
CPU
i7-8700K
Graphics
Vega 64
Mac
  1. MacBook Pro
  2. Mac mini
  3. Mac Pro
Mobile Phone
  1. iOS
I finally got everything working on my Asus Z170 Premium. Including airplay!

There is one last problem though. I have Nvidia GTX960 and two Samsung 4K@60 hz monitors. If I boot with Display port setting 1.2 in the monitor settings, the system boots up but I get a black screen on both the monitors.

However, if I change the DP version of my primary monitor (where I see boot log) to 1.1 before selecting drive in clover menu, both the monitors start normally. I then have to switch back the DP version back to 1.2

Does anybody know what might be going wrong?
(I want to post a perfect guide this time and this is the last thing.)
 
Fixed using AGDPFix by tonymac. I am now using iMac 17,1 with 4K@6Hz on DP 2.0
 
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