Hi, I recently made a successful build, but I have a problem. The displayport doesn't work, I have the main display hooked up via HDMI and it works fine, but like 2-3 seconds before apple logo shows up, the display port display loses signal. IOReg doesn't see the display, it's a HDMI display that i use HDMI->DP cable, since i have only 1 HDMI and 1 DP port. It works fine in Windows and BIOS but doesn't here. I tried WEG patches, IOReg shenanigans, different products instead of iMac18,1, different boot-args but to no avail.
Below link to my EFI
https://drive.google.com/drive/folders/11W93lCgahSCpsnky6N9iUDHRXBgPQFOb?usp=sharing
Board: h270m-ds3h-cf
cpu: i5-7400 kaby lake
gpu: 630 integrated
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