Radeon Compatibility Guide - ATI/AMD Graphics Cards

[Saminn]

Yes.

I don't know for some reason I thought you have either Polaris or RX Vega. anyways, try that file that I shared see if it helps.

 

[Jar-Jar]

I don't know for some reason I thought you have either Polaris or RX Vega. anyways, try that file that I shared see if it helps.

Thanks again for the help.

Same results. With the IPGU works fine, but with the 290X, black Screen, no image.

 

[hoangmytran]

Thanks again for the help.

Same results. With the IPGU works fine, but with the 290X, black Screen, no image.

Try putting -lilubeta and -radbeta in bootflag. I my system, those bootflags solved the black screen problem.
Hope it help!

 

[Scott1204]

Ugg, I’m stuck. Trying to switch to an XFX RX580 from a 1080TI.

High Sierra 10.13 hangs on boot in black screen. Added the lilu and whatevergreen kexts. MacPro 6,1.

Does this work with 10.13 latest version? Not sure what to try next.

I was hoping it would be easier than fixing the Nvidia problems but so far about the same.

 

[Jar-Jar]

Try putting -lilubeta and -radbeta in bootflag. I my system, those bootflags solved the black screen problem.
Hope it help!

Thanks again for the help.

Same result. Black screen.

 

[carpentryplus25]

Thanks again for the help.

Same result. Black screen.

Have you tried -lilubetaall along with -radbeta and PCIE as primary if those don't help just remove lilu and whatevergreen and patch the frame buffer connectors that's what I had to do for my HD 7970 lilu and whatevergreen just couldn't do it at least not with my multi monitor setup would work for one monitor but not the others

 

[Jar-Jar]

Have you tried -lilubetaall along with -radbeta and PCIE as primary if those don't help just remove lilu and whatevergreen and patch the frame buffer connectors that's what I had to do for my HD 7970 lilu and whatevergreen just couldn't do it at least not with my multi monitor setup would work for one monitor but not the others

I will try at night.
Now, the igpu is the first to show image. Only one monitor.

Can you explain the method to patch the frame buffer? .

Only use one connector, hdmi (igpu and 290x) two wires to hdmi switch.

 

[Snowy]

Ugg, I’m stuck. Trying to switch to an XFX RX580 from a 1080TI.

High Sierra 10.13 hangs on boot in black screen. Added the lilu and whatevergreen kexts. MacPro 6,1.

Does this work with 10.13 latest version? Not sure what to try next.

I was hoping it would be easier than fixing the Nvidia problems but so far about the same.

Hmm that is sad to hear mate, hopefully you'll get this solved quickly. Have you tried SMBIOS iMac 14,2? worst case scenario another black screen right?
Every time I think I'm good to go I read a post like yours and it's back to square on again.
I'll stick with the 970 and Sierra until I'm 100% certain the RX580 works on (High) Sierra with the two kexts.

 

[carpentryplus25]

I will try at night.
Now, the igpu is the first to show image. Only one monitor.

Can you explain the method to patch the frame buffer? .

Only use one connector, hdmi (igpu and 290x) two wires to hdmi switch.

There is some information about how to do this in post 1 of this thread

 

[Norkfy]

Hi! Now I am in AMD club. I've switched from GTX 980 to RX 580 on high sierra.
After update to high sierra, nvidia performance was very very slow. Chrome browser was epically slow.

I've bought RX 580 and had to update bios on my motherboard, because PC just didn't boot. After bios update and with MacPro6,1 smbios, lilu and with whatevergreen kexts all works perfectly!

I have two 4k displays, both connected by Display Port. Performance is very very high! Apps that were slow on Nvidia now fly on 60fps.