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Black screen with my RX480 when trying to boot USB 10.13 Installer disk

Joined
Jun 6, 2015
Messages
22
Motherboard
GA-Z97X-UD7 TH
CPU
i7 4790K
Graphics
RX 480
Hello!
I am now on 10.12 Sierra and I would never touch this systems as it works 98% ok ;)
However using the usual USB disk preparation with Uni- Multibeast I would like to try a test install of 10.13 on my 2.HD.
No matter what I configure for that USB I never get to the installer as the boot from the USB disk ends up in a black screen and an apparent freeze. I can follow the verbose boot log until a certain point when the screen turns black.
As I have a working installation on my 1.HD I copied over my current 10.12 clover config as well as most of the needed kext over to the USB drive:

1. into /EFI/clover/kext/other
2. into /L/E manually on the USB drive

Lilu Kext is at V1.3.4, WhateverGreen at V1.2.6 I intentionally did not update the kext as Hight Sierra is not the lastest OS.

I do aim to get the Installer running without IGPU as this never worked on my Hacintosh. The RX480 is otherwise just fine.

Any hints were to go from here?
 
Joined
Jun 6, 2015
Messages
22
Motherboard
GA-Z97X-UD7 TH
CPU
i7 4790K
Graphics
RX 480
Got it solved by myself: you got to use the HDMI Port instead of DP! Then screen turns black at boot but readjust itself some seconds later.
-> successful install of OSX 10.13 on my 2.HD ;)
 
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