Made a Hackintosh out of an Intel NUC7i5BNK, Everything working except Dual monitors

After looking on the Apple webshop for the most recent Mac Mini and seeing memory and SSD is non replaceable I decided to go the Hackintosh way. Although not easy, I've managed to create a stable system but can't get the dual monitors setup to work. 1 working monitor is connected to HDMI port, the 2nd blanking monitor is connected to the Thunderbolt/USB-C port with a Displayport to HDMI dongle.

The dual monitors are working when booting (or in BIOS) in mirror mode but when it comes to logging in the 2nd monitor blanks.

Some info: I'm using High Sierra 10.13.2, the graphics chipset is an Intel Iris Plus 640. I have searched with google for a solution but most tutorials are about AMD / NVidia, or earlier versions of Intel boards. Any help or pointers are appreciated.

Happy Holidays, Hackintoshers.

submitted by /u/77slevin
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