- Oct 26, 2013
- MSI B250M PRO-VHD
- RX 570
Do i have to switch to iMacPro1,1 and disable iGPU and rename PEGP to GFX0 as you suggested here to achieve full acceleration?
Recently on Catalina, only SMBIOS iMacPro1,1 and MacPro7,1 support hwe420 for AMD GVAH264Encoder, and HEVC encoding feature are covered by AppleGVAHEVCEncoder.bundle.
Use SMBIOS iMacPro1,1 or MacPro7,1.
Disable IGPU from BIOS,
Or use headless ig-platform-id 3E920003 for UHD630. may cause randomly KP reboot issue when using SMBIOS iMacPro1,1 + headless IGPU mode (like my Asus B150 Pro Gaming D3 get random KP, other hacks OK),
Or add clover patch to disable IGPU if do not want to disable IGPU from BIOS , useful for Davinci Resolve transcoding on Windows platform.
Not sure RX590 device-id is native support or not, if not, try add device-d ox67CF or 0x67Df as below