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Radeon Compatibility Guide - ATI/AMD Graphics Cards

Vega 64 issues....(it has to be....)
whenever I play a video on youtube or a game or both out of the 2 monitors ill get a random freeze, black screen that forces me to do a hard reset to my machine.

What the hell is causing this... I can be designing in Adobe CC all day and night but when I do something that uses my GPU I run the risk of my comp taking a dump, and its random.. it could be 5 min into it or 2 hours.

any help would be greatly appreciated!
Thanks!

GIGABYTE Z370 AORUS GAMING 7, i9-9900K, Vega 64 Mojave
 
HELP !
Asus AMD Radeon RX 5700 XT, Cant make it work after installation on Catalina.
 
After Clean Catalina 10.15.5 Install everything goes right with the on board graphics, but when I insert my new Asus RX 5700 XT OC 8GB GDDR6, goes to black screen on boot.
Im new on it, I use Hackintosh for a long time cause a friend use to help me on install. Now, on my own, Im stack !
Please help !
 
Hi,
what do I have to do, to "change" the third (DVI) connector on my Gigabyte Radeon RX560 OC 4G, so that it works (it's actual recognized, but black). It seems to be shown as LVDS in Hackintool, but my MB is too old, so Hackintool doesn't support it. I'm using latest Mojave.
Any hints?
Thanx a lot in advance.
 
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what do I have to do, to "change" the third (DVI) connector on my Gigabyte Radeon RX560 OC 4G, so that it works (it's actual recognized, but black). It seems to be shown as LVDS in Hackintool


@TESTER321022,

It's usually mandatory to install Lilu + WhatEverGreen (WEG) if you want to use more than two outputs from a OEM AMD dGPU. The issue is caused by the OEM dGPU not matching Apples AMD framebuffer definitions, WEG patches the AMD framebuffer so that all outputs work.

Hackintool will only show the IGPU framebuffer connectors, not the dGPU.

Cheers
Jay
 
Hi Jay,
thanks for your support!

I installed Lilu and WhateverGreen and disabled the "ATI-Injection"in clover.
It seems, that the card is now working via LILU/WEG.
All three monitors (old Dell's) are shown in the macOS system information, but the third monitor (DVI) is still black and on the others sometimes there's there's a little "flickering".

Cheers, H.

PS Flickering only on one of the Systems - have to check that!
The second system is working fine (in macOS System-info the card shown as Radeon RX 560 4 GB). DVI - Out doesn't work.
Where could this connector-trouble be fixed/ patched?
 
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Where could this connector-trouble be fixed/ patched?


@TESTER321022,

For most users Lilu & WEG should take care of patching the AMD framebuffer ... as such there have not been any updated guides on the subject for a few years (as far as i am aware).

There are a few old resources here at TMx86 that detail the manual methods of how it used to done.

AMD Framebuffer patching is touched on in Section 3 of the AMD Compatibility Guide (1st post in this thread) :-


And in a bit more detail in this guide :-


Note that both of the above resources are for older AMD GPU's and MacOS versions but the methods should work for a RX 5XX based GPU (although I have never personally tried it). If you are running Mojave or Catalina you will most likely need to disable SIP in order to use a custom/modified AMD FrameBuffer kext (Lilu / WEG dynamically modify the kext in memory once it is loaded).

Cheers
Jay
 
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HDMI definitely did not work but I was able to finally get it to boot with acceleration via DP. Here's what I did since I last posted:
  • Booted into single user mode and removed old Multibeast kexts from /L/E
  • Updated Clover to 5114
  • Incidentally stupid Windows 10 update wiped my Clover UEFI boot manager and I had to recreate it.
  • Latest WEG, Lilu, FakeSMC, ALC to EFI/C/k/O
  • Changed SMBIOS from iMac14,2 to iMacPro1,1
  • agdpmod=pikera (my previous post had it as agdpmode but I don't remember if I actually tried with e or without, probably doesn't matter anyways since WEG 1.3.8 should take care of it but who knows)
It's likely that SMBIOS version was the culprit, and your suggestion of MacPro6,1 probably would have worked too.

So far everything seems to be in a good shape and stable.
Does /L/E need to be empty ?
 
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