Black screen/freeze issue with Ventura after login, 3 monitiors

[Bajaking]

I have an issue that I can't seem to get to the bottom of... I have a working Monterey 12.6.5 installation on a hack build that I've had for 2 years: ASRock Z390 Phantom Gaming ITX/ac, i9-9900K, Gigabyte RX 6800 XT, OC 0.9.2

 

I have 3 screens: 2 x 27" Dell S2721QS via Display port and 1 x LG 48" OLED CX via HDMI

 

I've been trying to upgrade (via a fresh install) to Ventura 13.3.1, which runs fine as long as I don't connect all three monitors, It works without an issue on one monitor, but when I connect all three at boot, Ventura loads fine up to after I put in my password then the screens go black, but there is still a signal to the monitors.  

I wondered if it is a bug: https://discussions.apple.com/thread/254766455 or I'm missing something from my EFI folder...

 

A link to a copy of my EFI folder:

 

https://www.dropbox.com/sh/8i5lq5fzsj97yh0/AABLG5jyC19MOk3qkdU0_h8-a?dl=0

 

Thank you in advance

Edited May 6, 2023 by Bajaking

[Bajaking]

I have tried running MacPro7,1 SMBIOS with the boot-arg agdpmod=ignore, same issue persists 

[rachel gomez]

You may want to try updating or reinstalling the graphics drivers for your Gigabyte RX 6800 XT. Additionally, you could try disconnecting all the monitors, then connecting them one at a time after booting up to see if any one monitor is causing the issue. If none of these solutions work, you may want to seek help from an IT specialist or contact the Apple support team.

 

Greeting,

Rachel Gomez