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I have gotten the mac OS High Sierra 10.13.3 installed successfully with the help of Jake Lo and crew. and following the guide on the forum. However the guide says minidp is working but for me its not. When i connect a minidp to dp cable to the port the laptop screen starts to react like it should activate a 2nd screen or mirror. Same thing happens on the monitor it reads an input from the cable and turns on but after 5 seconds the screen on the laptop will act like the cable is being disconnected and flicker again and it starts the process over. Does anybody have any clue where to look to solve this?