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Radeon Compatibility Guide - ATI/AMD Graphics Cards

Joined
Nov 4, 2016
Messages
113
Motherboard
GA-Z170x-Designare
CPU
Core i7-6700k
Graphics
AMD FirePro W9000 + Radeon 7970
@LostVector: Did you need to do anything to enable 5K on your FirePro GPU? That's quite interesting, as most people were unsuccessful trying to use a 5K display with AMD GPUs. I just remember one successfull attempt using a R9 280X, but it involved fiddeling with framebuffer personalities and SMBIOS profiles.

Regarding the Clover stuff: I'd really like to encourage you to try everything what comes to your mind! I'd also happily discuss any ideas here. It's about time to fix that stupid bug...
Yes ... I posted in another thread but essentially you must be sure the "none" profile is not used for your current board-id in AGDP. I figured this out by noticing that some posters with MST 4k monitors were able to get their monitors working with the macmini6,1 SMBIOS. It's not the SMBIOS per se that is special, but rather the lack of its board-id in AGDP that is the key. So I'm on iMac14,2 and it all works because I edited my AGDP Info.plist.

Anyway, this can be done several ways, but removing your board id from AGDP completely or changing the default in AGDP from "none" to a custom profile that does nothing also works. The key is that "none" is not a no-op ... it does something which kills MST support.

Personally, the way I do it is to create a custom empty config called "Custom" similar in structure to the "Config1" and "Config2" sections, etc ... and then point both "Default" and the board-id for my SMBIOS to "Custom".

I saw the other user who claimed he got it working in 5K, but based on the lack of details from him I'm not sure he actually has it working.

I did not have to edit framebuffer personalities, although I did mess with that for a while and construct a working framebuffer personality for my card. The default RadeonFramebuffer works just fine, and the FirePro W7000 ID is in AMD7000Controller.kext, so it's about as native as you could hope for.

EDIT: Also make sure that CFG_USE_AGDC is set to true for your framebuffer personality in your respective AMDXXXXController.kext Info.plist. If using RadeonFramebuffer, set it to true in the default section. If using a custom framebuffer, you may have to add or override it in the respective configuration section for that framebuffer. I ran into issues with this in 10.12.4 and I'm not sure if I made this edit in 10.12.3 and just forgot, or if it's new to 10.12.4.
 
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Joined
May 16, 2010
Messages
66
Motherboard
Gigabyte GA-Z270X-UD5
CPU
Intel Core i7 8700K
Graphics
Radeon RX Vega Frontier Edition
Mac
Mac Pro
Mobile Phone
iOS
@LostVector Man, seriously thank you thank you thank you!! I've been pulling my hair out checking all kinds of forums on this freaking Nvidia MST cursor glitch using the dell 5k. I would not have been able to get my AMD RX480 card to work with this display without that incredibly helpful information. I was about to give up!!
 
Joined
Feb 26, 2011
Messages
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MacBook Pro
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Yes ... I posted in another thread but essentially you must be sure the "none" profile is not used for your current board-id in AGDP. I figured this out by noticing that some posters with MST 4k monitors were able to get their monitors working with the macmini6,1 SMBIOS. It's not the SMBIOS per se that is special, but rather the lack of its board-id in AGDP that is the key. So I'm on iMac14,2 and it all works because I edited my AGDP Info.plist.

Anyway, this can be done several ways, but removing your board id from AGDP completely or changing the default in AGDP from "none" to a custom profile that does nothing also works. The key is that "none" is not a no-op ... it does something which kills MST support.
Great finding! I was wondering if this would also work with variants of RX 480 / RX 470 that can output 2xDisplayPort. Are you referring to FirePro W7000 only?

Also I would really appreciate some more detailed information on how to achieve that resolution.
What about sleep, will it wake to 5K again? Thanks
 
Joined
Nov 4, 2016
Messages
113
Motherboard
GA-Z170x-Designare
CPU
Core i7-6700k
Graphics
AMD FirePro W9000 + Radeon 7970
Great finding! I was wondering if this would also work with variants of RX 480 / RX 470 that can output 2xDisplayPort. Are you referring to FirePro W7000 only?

Also I would really appreciate some more detailed information on how to achieve that resolution.
What about sleep, will it wake to 5K again? Thanks
I've only tested with the FirePro W7000 since it's what I have. But someone else posted it worked with their RX480.

Sleep/Wake to 5K works (with the caveat that all ATI cards need a helper card of some sort at the moment).
 
Joined
Jul 1, 2011
Messages
17
Motherboard
Gigabyte GA-Z97M-D3H rev1.1
CPU
Intel Core i3 4330 3.5GHz
Graphics
Sapphire (ATI) Radeon HD6790 1GB
Mac
MacBook Pro
Classic Mac
iBook, iMac, Power Mac, PowerBook, Quadra
Mobile Phone
iOS
Anyone having color flashing issues with 10.12.4?
AMD Radeon HD6790 with modified Info.plist on AMDX3000 and AMD6000Controller, was working perfectly with 10.12.3.
 
Joined
Jul 21, 2010
Messages
88
Motherboard
ASUS X99 Pro USB 3.1
CPU
i7-6800K
Graphics
RX480+HD5750
Anyone having color flashing issues with 10.12.4?
AMD Radeon HD6790 with modified Info.plist on AMDX3000 and AMD6000Controller, was working perfectly with 10.12.3.
yes, my hd5750 is color flashing on 12.4. It was flashing during all the betas too. Had heard of others during betas that had radeon flashing, but no solutions or comments
 
Joined
May 16, 2010
Messages
66
Motherboard
Gigabyte GA-Z270X-UD5
CPU
Intel Core i7 8700K
Graphics
Radeon RX Vega Frontier Edition
Mac
Mac Pro
Mobile Phone
iOS
@LostVector So i regrettably updated to 10.12.4 and now my MST doesnt seem to be working... Everything was working with my RX480 and dell 5k prior to updating, not sure what exactly about the update broke my MST support. Would you mind sharing your AGDP plist with me?
 
Joined
Nov 4, 2016
Messages
113
Motherboard
GA-Z170x-Designare
CPU
Core i7-6700k
Graphics
AMD FirePro W9000 + Radeon 7970
@LostVector So i regrettably updated to 10.12.4 and now my MST doesnt seem to be working... Everything was working with my RX480 and dell 5k prior to updating, not sure what exactly about the update broke my MST support. Would you mind sharing your AGDP plist with me?
Updating OS versions overwrites the kext ... did you try just making the edits again?
 
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