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its one of the fixes in clover configurator in Acpi section

For me it was Fix Display check active, which should be disabled if you use whatevergreen.

Or I guess it's zero exactly because of WhateverGreen, and it was 6 initially. Should I try patch and make it 5 or 0 is fine?

When I do ioreg -lw0 | grep CFG_FB_LIMIT I get | | | | | "CFG_FB_LIMIT" = 0 | | | | | "aty_config" =...

Created thread in Post Installation/Graphics forum https://www.tonymacx86.com/threads/h370n-wifi-gigabyte-rx-580-pulse-mojave-10-14-2.267879/

Hi all! I've built system with this configuration and installed the latest Mojave. I think I managed to setup everything except external GPU. I cannot make DP ports work. What's especially weird, when I connect my monitor via DP Mojave sees it as two monitors instead of one and monitor itself...

Yes

I don't understand why here https://www.tonymacx86.com/threads/radeon-compatibility-guide-ati-amd-graphics-cards.171291/page-239#post-1768814 in AMD9500Controller.kext Orinoco has 5 ports with the same layout as on my card, but when I run this script to dump my kext, Orinoco in my system...

So it didn't have any effect. Also I decided to try HDMI-2 cable, so I bought one today. And I still getting 30 Hz with it. So HDMI ports are not good also :/

Nope, my card is pretty "standard", 2 HDMI, 2 DP and DVI. But when I dump my Orinoco framebuffer it says it supports 6 ports - extra DP in the end.

Thanks! I'll try it once I get home!

No I don't have it. What does it do? Can it help with my problem on its own?

Or should I use this guide? https://www.tonymacx86.com/threads/black-screen-with-macpro-6-1-or-imac-15-or-imac-17-system-definition.183113/

How do I do this? In Acpi change PCI0 to PCI1? But it will move all devices to PCI1.

Same behavior :/ And for some reason switching to Macmini breaks my USB mapping, it now ignores aml file I created.

When I dump framebuffer, Orinoco shows 6 ports, not 5, there is an extra port in the end. Orinoco (6) @ 0x70060 DP, DP, HDMI, HDMI, DVI-D, DP 000400000403000000010101000000001204060100000000 000400000403000000010201000000002205040300000000 000800000402000000010300000000001102010200000000...

My latest EFI and IOReg. Nothing changed regarding my main issue. Removed NullCPU and enabled iGPU in headless mode. I saw there are some patches to remap GPU ports, may be I need to do that. Is there a good guide to do that?

And the same behavior here

Same behavior. No DP signal, two connected DP monitors instead of 1. With or without iGPU disabled.

@Pavo can you please help?