- Oct 6, 2011
- Gigabyte GA-Z170X-Gaming 3
- RX 580
- Mobile Phone
I have given up. I sold my 5700XT on Ebay..
I need some help getting a 3 monitor setup going with a 5700XT.
I have been using two monitors just fine for the last few months but recently got a third. I am driving my two monitors with 1 DP, and 1 HDMI from my XFX 5700 XT. The other 2 DP ports on my card do not output at all on macOS, but work just fine in Windows so im confident its not hardware.
I have tried the RadeonBoost kext here, I've tried the SSDT, with and without WEG, and neither have helped with the ports, and some combinations have actually prevented me from booting.
Im currently on 10.15.2. Im working on setting up my system to update to 10.15.5/6 to see if new drivers give any help but wanted to touch base with this thread before going down that road!
Thank you for your help!
Thank you for this! Ive done some googling and Im not really getting anywhere. I have Hackintool, but still a bit confused how to navigate it. It does show my 5700 XT has 4 ports, which is promising - but I haven't been able to find any articles about creating port definitions, or even where to determine what my working ports definitions are.You are going to need to google how to create port definitions for your graphics card output ports. This configuration information that tells macOS using Apples version of ACPI to describe the hardware to the operating system. You probably wouldn't be having this problem with Sapphire branded cards since they are usually supported by Apple for e-GPU but you can manually add this data in Clover Configurator or in Open Core.
Hackintool can be useful for doing this.
Hope this gets you going in the right direction.
This guide worked well for Polaris cards and earlier:Thank you for this! Ive done some googling and Im not really getting anywhere. I have Hackintool, but still a bit confused how to navigate it. It does show my 5700 XT has 4 ports, which is promising - but I haven't been able to find any articles about creating port definitions, or even where to determine what my working ports definitions are.
Do you have a specific forum you think would be helpful that I can look into?
I was able to get all my ports working by using MacPro 7,1 system definition.This guide worked well for Polaris cards and earlier:
So if you recently installed High Sierra and have an AMD graphics card and were greeted at the end of the installation with black screens and Lilu.kext and WhateverGreen.kext wasn't able to resolve it, then try patching the framebuffer that corresponds to your graphics card to try resolving it...www.tonymacx86.com
But sadly trying to use the same tools to get connector information out of the bios dump for Navi cards does not work very well. I have tried to do the same for an eDP port on a 5700m but ran into the same issues.