[SUCCESS] Gigabyte Z370 Gaming 5 - 4k RX 580 - 10.13.4 & 10.14.4 & 10.15.0 - SSDT

[penrow1]

Sadly not, only a single 4K monitor on Display Port.
It always have been like this but if I turn on my monitor while the system is booting, I will not have signal until I have reached the lockscreen.

Have you tried playing with WhateverGreen? I am not injecting anything to get it to work.

I have the Gigabyte RX 580, which is yours?

Sorry for the delay, mine is Saphire 580

 

[penrow1]

The only way I've been able to get around this, is to set the SMBIOS product to iMac14,2

Yeah, the only reason I wanted to update was to use sidecar feature and that it wouldn't work with 14,2

 

[galisrule]

hey James 1 question how did you get the sound to work from the HDMI ports on Catalina?

 

[penrow1]

Post your EFI maybe something is not right in it.

@scottkendall would you happen to have a working EFI folder you could share for Gaming 5 mobo Catalina 10.15.4 ?

 

[jamesst20]

@scottkendall would you happen to have a working EFI folder you could share for Gaming 5 mobo Catalina 10.15.4 ?

I have got one, I will post it later when I'm home

 

[penrow1]

I have got one, I will post it later when I'm home

Thanks James!

 

[scottkendall]

@scottkendall would you happen to have a working EFI folder you could share for Gaming 5 mobo Catalina 10.15.4 ?

I am not using clover.... But here is my OC EFI that is based @pastrychef efi.

 

[penrow1]

I am not using clover.... But here is my OC EFI that is based @pastrychef efi.

Is it as simple as just copying over to EFI partition? I never used open core before

 

[scottkendall]

Is it as simple as just copying over to EFI partition? I never used open core before

yes but no there is some stuff that needs to be filled in mainly the Platform/SM info. Take some time review a OC Vanilla guide if it causes you distress then you might want to wait for the clover EFI from @jamesst20

 

[penrow1]

Thanks Scott, I think I'll stick with Clover. I believe I used one of your EFI folders before and the USB config was what I was needing and James was different but now with Hackintool I think I can get that sorted out from James EFI Folder, Thanks Scott and James, this site really is a great community and resource.