Monterey 12.4 with RX 6600XT - Success (Asrock Fatl1ty b450 Gaming-itx/ac)

madvinegar

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Hi to all.
Just wanted to share my experience as it may help others with similar GPU.
I was always getting a black screen after the 1st Apple Boot Logo with the 6600xt even if I had added in the boot args the "agdpmod=pikera".

I don't know if this has been mentioned but the way I made it work in 12.4 was also to add the "-lilubetaall" argument. This is the only way it don't get a black screen and everything is working perfectly.

(You can also add the unfairgva=1 boot argument so as to have a working appleTV and Netflix in Safari.)


On another note, my Asrock mobo uses the i211 ethernet and this works great with AppleIGB kext and the e1000=1 boot argument.
Bluetooth also works great with bluetoolfixup kext and removal of intelbluetoothinjector kext.

I attach some pics and my boot arguments. Many thanks to all the community.

EFI: https://drive.google.com/file/d/1m-pfEMnnyIXpY090KbkLDDdqJVgYt7Z4/view?usp=sharing.
I have deleted in config plist/Platform info the information about Serial number, UUID, MLB and ROM, so you need to insert yours.

I think it works great with this mobo, a 6core Ryzen CPU and this GPU.
 

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Last edited:

madvinegar

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Great work. May I have a copy of your EFI please?
Sure. I amended the 1st post.
Remember this Efi is for the specific Mobo (with the intel wifi/BT and the specific USB ports), a 6core Ryzen Cpu and a 6000 series GPU. imessage and facetime also work.

I have deleted in config plist/Platform info the information about Serial number, UUID, MLB and ROM, so you need to insert yours.
 

Havakak

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May 3, 2020
Messages
29
Sure. I amended the 1st post.
Remember this Efi is for the specific Mobo (with the intel wifi/BT and the specific USB ports), a 6core Ryzen Cpu and a 6000 series GPU. imessage and facetime also work.

I have deleted in config plist/Platform info the information about Serial number, UUID, MLB and ROM, so you need to insert yours.
Thank you. I have the exaxt same mainboard. I want to look at your acpi folder and kexts. I am using my computer with OC 0.7 and Big Sur without any problem. I am planning to upgrade both OC and MacOS. This will be a good starting point for me.

By the way, I assume you are from Greece. So, greetings from the other side of the sea. ευχαριστώ
 

Havakak

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May 3, 2020
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I see you have mapped your USB ports via kext injection. I have those mappings in the ACPI section. If you want I can send you a copy of my ACPI folder.
 

madvinegar

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Jun 2, 2020
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I see you have mapped your USB ports via kext injection. I have those mappings in the ACPI section. If you want I can send you a copy of my ACPI folder.
Yes please, why not.
What will be the difference if I use your ACPI files? Is it better than using a kext?

Thanks neighbor!
 

Edhawk

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May 2, 2020
Messages
683
No, using an SSDT isn't better than using a kext. It is just another way to configure the USB port settings.

Both are subject to the same issues, user input. You can just as easily get the USB configuration wrong in an SSDT as you can in a Kext.
 
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