Radeon Compatibility Guide - ATI/AMD Graphics Cards

[jammiejammie]

These belong to single DVI port, so you have 5 connectors.

Thanks for pointing that out!

So i should use the "Ebi" or "Gari" frame buffer as template ?

Ebi (5) @ 0xa1d70
LVDS, DP, DP, DP, DP
02000000000100000901010012040303
00040000040300000001020011020101
00040000000100000009030021030202
00040000000100000009040022050404
00040000040300000001050010000505

Gari (5) @ 0xa1dc0
LVDS, DP, DP, DP, DP
02000000000100000901010012040303
00040000040300000001020011020101
00040000000100000009030021030202
00040000000100000009040022050404
00040000040300000001050010000505

And how should i point out the Dual Link DVI to match the 6 "connectors" ?

 

[mgregrs]

Just to add, I currently have an RX560 which has 1xDP and 1xHDMI port and 1xDVI.

To use more than 1 display, we must use nVidiaGraphicFixup.kext, Lilu.kext and WhateverGreen.kext.

Is there a better way to enable 2nd display without nVidiaGraphicFixup.kext or AGDPfix (ie not modifying any system files) to get access to the HDMI port as a 2nd display?

1xDP and 1xDVI works fine without nVidiaGraphicFixup.kext.
But 1xDP and 1xHDMI does not.

It's OK if you use DP and DVI, if you don't need exactly HDMI and DP
BTW: I think, what can be worst for unstable system
it's using 1x AMD and 1x nvidia cards ...
and I forgot... in my case (before, when I needed whatevergreen and lilu) i always used the last versions, so you can try
do download and maybe see some difference, which was always better for me)

Have a nice day

 

[alex4tress]

So i should use the "Ebi" or "Gari" frame buffer as template ?

Only experiment will show =) You can also fail with either of them.

And how should i point out the Dual Link DVI to match the 6 "connectors" ?

No need to, it's a little bit different story, not related to connectors description. As far as I understand, you "double" DVI should be last listed, that's all

 

[shuhung]

One of those is running at 1080p, it’s a 4K monitor but the first one shows 1080p? HDMI?

Normal, 2160p display in 1080p HiDPI mode.

 

[eviqnine]

can someone help to make rx 580 work?

 

[izo1]

can someone help to make rx 580 work?

What seems to be your problem?

It should work with only WhateverGreen and Lilu in your efi/kext/other directory.

I have read reports that GPUs like RX580 will work OOB (Out of the Box) without any kexts in 10.13.4 but I haven't had a chance to try it yet. That is very good news.

 

[eviqnine]

hello thanks for answer....I install high Sierra I have Asus z370f with i7 8700k I install and boot with igpu cause with pcie..it says out of range...now I make the install I try to fix rx 580 to boot when I change to pcie...never boot...apple logo stuck and then out of range

 

[mgregrs]

can someone help to make rx 580 work?

Simply copy 2 files: Whatevergreen.kext and lilu.kext
directly to your kext folder on your SSD/HHD
reboot and it should work

 

[eviqnine]

nothing...after I do this...I turn off igpu and put boot with pcie....and my monitor out of range after half bar of apple logo
what is wrong with this?what kext I must have I don't know I try everythig is the a config that I must make something there inside

 

[mgregrs]

nothing...after I do this...I turn off igpu and put boot with pcie....and my monitor out of range after half bar of apple logo
what is wrong with this?what kext I must have I don't know I try everythig is the a config that I must make something there inside

Can you share you config.plist?