i5 8600K , Intel UHD 630 - Problem in Dual-monitor setup in Mojave

Hello!

This is my first post on reddit.

You can all feel honored because it's on this subreddit ;)

I have a problem, and I would really appreciate your help ;)

My specs:

• Asus Z370 SLI PLUS (64MB DVMT Max in BIOS)
• Intel i5 8600K (UHD 630)

I have installed Mojave on UHD 630 using WhateverGreen kext and also setting SMBIOS to 18,1. If I didn't set SMBIOS there was a lot of glitching. So now the glitching is gone and all is fine on one screen, but when I start Mac OS with two screens plugged in, after half a minute glitching starts and it's impossible to see anything on screen.

However, if I start Mac OS with one screen and then plug in another, it's fine.

Do you guys know what could be the cause of this problem and how to make it so that I can boot up Mac OS with two monitors plugged to the iGPU ?Should I also tweak something else with my Intel graphics?

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EDIT: I also want to have my GTX 1070 plugged into my PC but disabled in Mac OS. How can I approach these two issues, because I believe that they are connected?

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Thanks very much, all help is appreciated ;)

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