macOS 12.3 Update Causes Problems for 5700/6800/6900 Graphics Cards

[mmaira]

@tedyun
Would you mind sharing how did you manage to read the ROM file to extract the PowerPlay Table?
I did use in the past radeon_bios_decode, but I am getting this error when I use it:

rhdAtomGetDataTable: No AtomBios signature found

Thank you very much.

 

[tedyun]

Hi @mmaira

I basically followed the video linked in this post.

I have a dual boot system, so I did all the ROM dumping and BIOS decoding in the Windows side. I used GPU-Z to extract the BIOS, AtomBIOSReader to get the address for the sPPT, then HxD Editor to open and copy the sPPT table from the BIOS.

 

[spyderfyre]

First it is spelt shikigva not shikgva. Secondly I understand shikigva was deprecated from Big Sur 11 onwards.

Going forwards your only options are not that many but as you have a RX 560, you could try some of the listed AMD overrides in the link given by StefanAM (on the bottom of the page) and see if they enable Fairplay.

Thank you. But I got around the problem by using SMBIOS MacPro7,1 and creating CPUFriend kext for better power management. All is good now!

 

[taconugget]

@Midphase - I'm not sure, and I don't want to give you the wrong advice.

The best thing to do is to contact the manufacturers directly.

That being said, @taconugget used the Sapphire, and it worked out of the box. It appears that it is recognized as a 73BF card or an XT.

A quick Google search pulled up a discussion on overclock, and a person contacted Sapphire who confirmed it was an XTX card.

Yes I own this:

Sapphire NITRO+ AMD RADEON RX 6900 XT SE GAMING OC Graphics Card With 16GB GDDR6 HDMI / TRIPLE DP

Sapphire NITRO+ AMD RADEON RX 6900 XT SE GAMING OC Graphics Card With 16GB GDDR6 HDMI / TRIPLE DP - Newegg.com

Buy Sapphire NITRO+ AMD RADEON RX 6900 XT SE GAMING OC Graphics Card With 16GB GDDR6 HDMI / TRIPLE DP with fast shipping and top-rated customer service. Once you know, you Newegg!

www.newegg.com

Worked out of the box with @CaseySJ EFI.

System information displays as such:
Chipset Model: AMD Radeon RX 6900 XT
Type: GPU
Bus: PCIe
PCIe Lane Width: x16
VRAM (Total): 16 GB
Vendor: AMD (0x1002)
Device ID: 0x73bf
Revision ID: 0x00c0
Metal Family: Supported, Metal GPUFamily macOS 2

 

[Sebseb82]

device_id string .. for amd radeon rx6900xt is??

 

[etorix]

0x73BF for all Navi21 RX 6800/6900 (XT), except RX 6900 XTXH (0x73AF) which must be spoofed to 0x73BF.

 

[tedyun]

device_id string .. for amd radeon rx6900xt is??

If you're using OpenCore, the entry should be

device-id data BF730000

Note that it is a "dash" and not "underscore" with device-id and "data" and not "string"

If you have an XT, it should work out of the box.

 

[tucoboy]

I also had same issue earlier.

I changed Misc-->Security-->SecureBootModel to Default from Disabled.

After this change in config file, I got the automatic updates in SysPref.

I just saw this and made the change and when the next update happens, I will let you know if it's a success. Thank you!

 

[Sebseb82]

0x73BF for all Navi21 RX 6800/6900 (XT), except RX 6900 XTXH (0x73AF) which must be spoofed to 0x73BF.

tnx

 

[Sebseb82]

If you're using OpenCore, the entry should be

device-id data BF730000

Note that it is a "dash" and not "underscore" with device-id and "data" and not "string"

If you have an XT, it should work out of the box.

tnx for answ..))


i ask for that ..

Radeon 6900 (Edit: This should be Belknap but people have had success with Carswell; 2022-03-27 Edit: It sounds like people are having better results when adding the device_id string):