Hi @MaLd0n Thanks for looking into my DSDT dump and EFI. I see the new structure for PEG0 in IOReg. Thanks for the USB SSDT as well the hack boots much faster without the purple glitches when the graphics drivers load!
I booted with your EFI and generated a new SendMe file: https://drive.google.com/open?id=1_8g8XbF9VB9DyqllfXXZvV7rHIj9wzrh.
I also booted without Whatevergreen, the GFX0 device disapears: https://drive.google.com/open?id=1RphWHLoHOw4mzVQ27Aa-oHw-QkGFR1Jo
What I'd like to do is to get full utilisation of the GPU without relying on Whatevergreen. From what I red, Apple apps like Compressor and Final Cut Pro work better without Whatevergreen when the Radeon RX Vega 56 8 GB appearing as a Radeon Vega Pro 56 like on an iMac Pro and using the Iriri frame buffer in a SSDT. Is it possible?
{
"AAPL,slot-name",
Buffer (0x07)
{
"Slot-1"
},
"@0,name",
Buffer (0x0A)
{
"ATY,Iriri"
},
"@1,name",
Buffer (0x0A)
{
"ATY,Iriri"
},
"@2,name",
Buffer (0x0A)
{
"ATY,Iriri"
},
"@3,name",
Buffer (0x0A)
{
"ATY,Iriri"
},
"device_type",
Buffer (0x0A)
{
"ATY,Iriri"
},
"model",
Buffer (0x13)
{
"Radeon Pro Vega 56"
},