How to get an AMD Radeon RX 5700 XT graphics card to run on an ASUS ROG STRIX Z390-I Gaming
You need to upgrade to macOS 10.15.1 (Final) and select the assembly CATAL-DGPU-EFI.zip. After that, you need to manually update the files:
Lilu.kext version
1.3.9 or later
WhateverGreen.kext version
1.3.4 or later
Clover can not be updated to a new version (it works like that).
To make it work you need to use a modified config. I added the Graphics section there, and added the boot argument agdpmod = pikera, and left everything else as
@ModMike. Do not forget to add your SMBiOS to the config. I am using iMac 19.1 (9900K).
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Full CLOVER folder for RX 5700 XT on macOS Catalina 10.15.1: