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Radeon Compatibility Guide - ATI/AMD Graphics Cards

Maybe Your bios' setting is wrong, try turning "internal graphics" on enabled
 
hammerhat said:
I'm hitting a wall wth Catalina upgrade. I have a Sapphire Nitro+ RX590 that worked just fine with 10.14 but can't figure out the black screen after 10.15.4 upgrade.

What I have tried so far:
  • Upgraded Clover to 5112, also tried Multibeast 12.1.0 Catalina Edition (that downgraded Clover to 5107)
  • HDMI vs DP
  • Disabled onboard GPU in BIOS
  • Changed OS to Windows 8/10 and Windows 8/10 WHQL to disable CSM support
  • WEG 1.3.8 and Lilu 1.4.3 to EFI/C/k/O, various combination of injecting/not injecting/blocking kexts in Clover boot.
  • Clover boot in safe mode
  • Added SSDT-EC.aml
  • agdpmode=pikera
None of that helped so far, the furthest I get is Apple logo with progress bar, then temporary artifacts in form of purple lines and then black screen, seems like the port has the power because the backlight is on and display doesn't go to sleep.

What I have not tried:
  • Additional binary patches - I understand none are needed with Radeon cards
  • Changing system definition from iMac14,2 - I have no idea what else to try and what effect would it have
  • Flashing BIOS
  • Messing with /L/E or S/L/E - looks like EFI/C/k/O is the preferred method with Catalina anyways
I can boot with onboard Intel graphics (without acceleration but that's probably fixable), obviously that's not what I'm trying to get.


Please help me Obi Wan, you're my only hope
Click to expand...
I don't know if this will fix Your issue but try this:
--> Connect Your monitor via HDMI
if this won't work, try changing your SMBIOS from iMac14,2 to Mac Pro 6,1.

NOTE: Remember that, in case this fix won't work, for some reasons You could be not able to boot so try this fix ONLY IF YOU CAN BOOT VIA USB (using the USB that You used for the install), eventually You can re-change the SMBIOS version and try something else...
 
Logic said:
--> Connect Your monitor via HDMI
if this won't work, try changing your SMBIOS from iMac14,2 to Mac Pro 6,1.
Click to expand...

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.
 
hammerhat said:
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.
Click to expand...
Awesome!
 
Hi I did that and it still boot with Intel4000 but doesn't see the RX580 card. I tried only plugging the caed with HDMI cable. It boots my nothing shows up. its blank and doesn't seem that there is signal sending from the card. I see the fan and the power light is on.

Its driving me crazy here.
Click to expand...
I had this issue with a second monitor (I have RX 580 too)
I fixed it changing SMBIOS version to mac pro 6,1

NOTE: Remember that, in case this fix won't work, for some reasons You could be not able to boot so try this fix ONLY IF YOU CAN BOOT VIA USB (using the USB that You used for the install), eventually You can re-change the SMBIOS version and try something else...
 
Have they fixed the Vega fan speed issue? I’m on Mojave.

I currently have a 590 with lilu/WTG installed. Wanting to do swap to a Vega 56. Which Vega 56 brand is the most compatible and would work out of the box without any fan issues?
I’m seeing buying guide says MSI air boost but not sure if it’s flawless compatibility?
 
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Last edited:
8 Series
GA-Z87-HD3 |  i7 4790 |  RX 580 Pulse 8GB
@Ricsix86,

GPU's that follow the AMD reference design will give you less installation issues, most non-reference GPU's have more output ports (5 vs 4) and a different mix of DVI, HDMI and DP of ports .. both of these differences from the reference design can cause the black screen on boot issue.

If you instal Lilu + WhatEverGreen it will do its best to enable all the ports on a non-reference AMD GPU but it does not always work in which case you need to manually patch the AMD framebuffer.

Sapphire GPU's tend to be favoured by Apple over other OEM's as they tend to follow the reference design.

dGPU's in MacOS are controlled by the OS via Apples baked in driver kext's and not by the VBIOS on the GPU like in Windows, so all of the RX 570 GPU's in your list will have very similar performance ...

The Sapphire NITRO+ RX 580 4GB GPU has the fastest and most powerful core of the options you listed and should work fine for most work loads as long as the 4GB VRAM is enough for the type of tasks you run.

If you plan on running GPU intensive tasks then opting for a GPU with 8GB of VRAM may be better suited.

You may want to consider getting a Vega 56 or 64 GPU which are way more powerful then RX 570 or RX 580 and are very stable on MacOS, they are also good buy right now (if you can find one in stock) as they are heavily discounted at the moment due to them being superseded by the Navi GPU's ... buying used from eBay is also another option, thats what i did with my Vega 64 Liquid Cooled edition and i've been super happy with it.

Cheers
Jay
 
jaymonkey said:
@Ricsix86,

GPU's that follow the AMD reference design will give you less installation issues, most non-reference GPU's have more output ports (5 vs 4) and a different mix of DVI, HDMI and DP of ports .. both of these differences from the reference design can cause the black screen on boot issue.

If you instal Lilu + WhatEverGreen it will do its best to enable all the ports on a non-reference AMD GPU but it does not always work in which case you need to manually patch the AMD framebuffer.

Sapphire GPU's tend to be favoured by Apple over other OEM's as they tend to follow the reference design.

dGPU's in MacOS are controlled by the OS via Apples baked in driver kext's and not by the VBIOS on the GPU like in Windows, so all of the RX 570 GPU's in your list will have very similar performance ...

The Sapphire NITRO+ RX 580 4GB GPU has the fastest and most powerful core of the options you listed and should work fine for most work loads as long as the 4GB VRAM is enough for the type of tasks you run.

If you plan on running GPU intensive tasks then opting for a GPU with 8GB of VRAM may be better suited.

You may want to consider getting a Vega 56 or 64 GPU which are way more powerful then RX 570 or RX 580 and are very stable on MacOS, they are also good buy right now (if you can find one in stock) as they are heavily discounted at the moment due to them being superseded by the Navi GPU's ... buying used from eBay is also another option, thats what i did with my Vega 64 Liquid Cooled edition and i've been super happy with it.

Cheers
Jay
Click to expand...

Thank you, Jay!
I chose the 580, mostly use audio related apps, so the 4GB will be enough.
R.
 
8 Series
GA-Z87-HD3 |  i7 4790 |  RX 580 Pulse 8GB
Hi, I use an RX 480 (sapphire nitro +) on catalina 10.15.4
The card works well on the two DP outputs. But the two HDMI and DVI do not work, they are black. When I connect a DP + HDMI it loses full acceleration and makes flags, but the HDMI monitor remains black.
With Mojave I used an AMD9500 Controller patch, but on Catalina it doesn't work. Can you tell me how can I solve?
This is my Mojave patch:

<dict>


<key>Comment</key>


<string>connectors patch</string>


<key>Disabled</key>


<false/>


<key>Find</key>


<data>


AAQAAAQDAAAAAQEBAAAAABIEBgEAAAAAAAQAAAQDAAAA


AQIBAAAAACIFBAMAAAAAAAgAAAQCAAAAAQMAAAAAABEC


AQIAAAAAAAgAAAQCAAAAAQQAAAAAACEDBQQAAAAABAAA


AAQAAAAAAQUAAAAAAAAAAwYAAAAA


</data>


<key>InfoPlistPatch</key>


<false/>


<key>Name</key>


<string>AMD9500Controller</string>


<key>Replace</key>


<data>


AAQAAAQDAAAAAQABAAAAABIEBgEAAAAAAAQAAAQDAAAA


AQABAAAAACIFBAMAAAAAAAgAAAQCAAAAAQABAAAAABEC


AQIAAAAAAAgAAAQCAAAAAQAAAAAAACEDBQQAAAAABAAA


AAQCAAAAAQAAAAAAABAAAwYAAAAA


</da
 
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