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RX 580 working great with new parts now!:)

Thank you very much for help mattystonnie! I ordered new hardware today. Intel Core I7 9700K Gigabyte Z390 Designare Corsair Vengeance LPX DDR4-3200 C16 BK DC - 32GB Samsung 970 EVO Plus SSD M.2 2280 - 500GB I think I should get RX580 to work in Mojave with this hardware.:)

Thank you for helping mattystonnie!:) I tried with Inject ATI=true/false result is same and also framebuffer Guariba have same results. HDMI -->black screen no signal DP-->HDMI --> black screen with cursor

Here is copy paste from terminal after command. ATOM BIOS Rom: SubsystemVendorID: 0x1da2 SubsystemID: 0xe387 IOBaseAddress: 0x0000 Filename: 387Y6SHU.O4B BIOS Bootup Message: E387 Polaris20 XTX A1 GDDR5 256Mx32 8GB PCI ID: 1002:67df...

I tried GPU to PCIe slot 2, same result black screen. I opened DPCIManager in sierra to get this rom-file.

Thank you, tried this EFI Inject ATI = true HDMI --> Black screen DP --> Black screen with cursor Inject ATI = false HDMI --> Black screen DP --> Black screen with cursor

Thank you for helping, this solution didn't help, got black screen with a cursor. This is tough one, don't want to let me boot in, only safe mode works with RX580 and Mojave. Thank you for helping scottkendall. Yeah bought this RX 580 exactly a week ago last Wednesday, first 4 days searching...

I tried different HDMI cable DP/HDMI same result. I can type my password then some verbose text come quick and go and after that stays black screen. I can login but black screen stays. I also tried your provided EFI with my friends GPU MSI Radeon R9 390 Gaming 8Gb, it boots nicely into...

I tried both EFI folders, and results were same. HDMI = Black screen DP = Black screen with cursor

I tried all ports with your EFI (and debug=0x100) 2x HDMI = Black screen no signal 2x DP -> HDMI = Black screen no signal DVI = Black screen Kernel panic My mobo doesn't have internal video. Only RX 580 installed (I have GTX460 helper card if needed, not installed now) Just for background...

Thank you for helping. I tried your edited EFI with HDMI and DP-port both results black screen without signal. My MB is pretty old I don't think I have that CSM setting here. I took pictures of all my BIOS settings.

Thank you for helping P1LGRIM! I tried couple videos, but they are not readable too blurry, text moves so fast there. :) I try to figure something out to get it readable video. Thank you for helping mattystonnie! I tried your EFI folder, same result black screen with cursor. Then I tried all...

I used boot flag debug=0x100, now instead of black screen i got this. Maybe here some info what I could try next?

Hello I'm pretty new to Hackintosh world, this is my first Hackintosh. MB: GA-X38-DS5 CPU: Q9450 GPU: Sapphire Pulse Radeon RX 580 8GB. I have working system with mac OS Sierra. In Sierra everything works great with RX 580 but in Mojave + RX580 couldn´t even get installer to work. (using HDMI...