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VDA Decoder Fully Supported, airplay still doesn't work

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Have you tried iMacPro1,1 system definition with IGPU disabled? This works for me for mirroring or separate display. It even works without an AppleTV if you have a fairly recent vintage LG TV.
hmm no i just followed dortania guide in everything with smbios as well, will try out if nothing works
 

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pastrychef

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macpro1.1 right? and what you mean by igpu disabled in bios?

Yes, iMacPro1,1.

I don't know how to explain further... Boot in to BIOS and disable IGPU...
 
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managed to boot with macpro1.1 mirroring issue seems exactly same
 

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pastrychef

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Not sure why you are getting black screen on your TV... I have tested on both my Z370 (Vega 56) and Z390 (Radeon VII) builds and they work.
View attachment 509961
maybe i did something wrong, i changed smbios in opencore and disabled igpu in bios everything else was same, is any other change nessesary?

oh and do your mirroring works as well as external display thru airplay ?
 

pastrychef

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maybe i did something wrong, i changed smbios in opencore and disabled igpu in bios everything else was same, is any other change nessesary?

oh and do your mirroring works as well as external display thru airplay ?

That's all that should be necessary.

AirPlay Mirroring works pretty good. I have never really used it for desktop purposes. If/when I do use AirPlay, it's mostly to mirror videos to the TV and that works fine.
 
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