@Middleman
I had not realized that SSDT-AWAC was missing. Although it may not be necessary (to find out you have to obtain the DSDT in AML format> decompile it to ASL format> search the DSL file for the Device (AWAC) text> if it does not exist> SSDT-AWAC is not necessary) it does not hurt to have it installed so in doubt it seems advisable to add it (also in config.plist).
This is difficult to understand.
@ifreddy has the same motherboard as me and a very similar CPU, these errors do not make sense because my hardware works perfectly with 10.15, 11 and 12.
The only difference is in the dGPU, RX 580 versus 550. But it's hard to believe that just adding the 550 would cause so many errors.
I believe that
@ifreddy is trying to have the 550 as primary card, in this case the iGPU does not carry image to display and it does not have to be activated at startup with arguments like igfxhdmidivs, igfxonln=1 or disablegfxfirmware, these arguments are intended for the iGPU that works as primary card and carries image to display.
As per Coffee Lake's Dortania
guide, you only need the AAPL,ig-platform-id property:
"Note: Headless framebuffers (where the dGPU is the display out) do not need framebuffer-patch-enable and framebuffer-stolenmem."
Reviewing BIOS settings, this is the most important thing that I have in my Hack:
- CFG Lock: Disabled
- Platform Power Management: Disabled
- VT-d: Disabled
- XHCI Hand-Off: Disabled
- Legacy USB Support: Enabled
- Network Stack: Disabled
- CSM: Disabled
- Secure Boot: Disabled
- Fast Boot: Disabled
- OS Type: Windows 8/10
- Wake on LAN: Disabled
- Initial Display Output: PCIe 1 Slot
- DVMT Pre-Allocated: 256M or higher.
With BIOS F10g or F10h. What version do you have
@ifreddy?
The version of OpenCore you are using is not recent, I will prepare an EFI folder with OpenCore 0.7.0, adapting the current config.plist with the things that
@Middleman proposes for the dGPU (DeviceProperties and SSDT-GPU-SPOOF) but with the iGPU set for headless mode.
A doubt. When you say "(RX TO MONITOR VIA DVI) and (connected HDMI cable iGPU HD360 only part)" do you mean that the iGPU has an HDMI cable connected but it doesn't end anywhere?
Before RX 550, the system was working well using Intel iGPU as single card?