![[<span class='badge badge-success'>Success</span>] RX 6600 XT with working DRM on Monterey 12.1 Beta](https://b.thumbs.redditmedia.com/383t3VXJz_510eui2_s8DClUyDn9ko5YSiSG7EoWZkw.jpg "[<span class='badge badge-success'>Success</span>] RX 6600 XT with working DRM on Monterey 12.1 Beta")
Using a dGPU-only SMBIOS to not bother with the weaker iGPU.
iGPU was disabled in the BIOS and also DeviceProperties->Add in my EFI doesn't contain any entries as these are for the iGPU only.
You have to use WhateverGreen in RELEASE mode and have agdpmod=pikera in your boot-args.
The rest is as explained in the OpenCore guides.
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