Thanks a lot for your reply and interest.
But, no. With your EFI I still just get black screen in both HDMI and DVI.
I noticed that you changed my SMBIOS to iMac Pro 1,1.
I don't think my hardware is compatible with this, but maybe you know better...
Just in case, I tested your...
Following the instructions in the first post I only get black screen in both HDMI or DVI. The only way I can get video is by injecting in Clover using Orinoco as the Framebuffer. But the problem is that, by doing so, I have no hardware acceleration (as Videoproc tells me).
Attached is my actual...
Could you please help me customise your RX 580 SSDT to fix my build?
The paths are: Display - PciRoot(0x0)/Pci(0x3,0x0)/Pci(0x0,0x0)
HDMI Audio - PciRoot(0x0)/Pci(0x3,0x0)/Pci(0x0,0x1)
Vendor: AMD (0x1002)
Device ID: 0x67df
Revision ID: 0x00ef
I use Clover...