HDMI Audio - HD 530 -- Big Sur. - HELP

[pastrychef]

No i'm using the igpu hd530, but if i remove these Lines Mac doesn't boot

Did you set 64MB or more for IGPU in BIOS?

 

[UtterDisbelief]

No i'm using the igpu hd530, but if i remove these Lines Mac doesn't boot

So have you removed the GTX1080 or is it still in place?

 

[Igna93]

Did you set 64MB or more for IGPU in BIOS?

I've set 64mb and i have removed 1080

 

[pastrychef]

I've set 64mb and i have removed 1080

If you've already set it to 64MB, you can get rid of the stolenmem and fbmem. You will still need to fake the platform-id since High Sierra was never made to work with Coffee Lake.

 

[UtterDisbelief]

... and, you might want to try the two kexts:

FakePCIID.kext and FakePCIID_Intel_HDMI_Audio.kext

Put them in the EFI kexts folder and declare them in your config.plist.

 

[Igna93]

When I install these two kext pc doesn't start

 

[Feartech]

When I install these two kext pc doesn't start

bit vague

boot verbose, take a pic to upload here

 

[pastrychef]

When I install these two kext pc doesn't start

Do you get HDMI audio without those kexts?

 

[Igna93]

I'll explain the situation well: I had installed high sierra and everything worked fine, including the hdmi audio. The monitor was detected without problems. I used Clover.
Then I decided to give big sur a try as I took the nvidia off.

Since I used opencore it hasn't worked anymore.

Last night I decided to restore the backup with High Sierra and reinstalled Clover. Well, even with clover it doesn't work anymore.

I can't understand what I'm doing wrong. I attach all the files that may be useful to understand what not.

 

[UtterDisbelief]

I'll explain the situation well: I had installed high sierra and everything worked fine, including the hdmi audio. The monitor was detected without problems. I used Clover.
Then I decided to give big sur a try as I took the nvidia off.

Since I used opencore it hasn't worked anymore.

Last night I decided to restore the backup with High Sierra and reinstalled Clover. Well, even with clover it doesn't work anymore.

I can't understand what I'm doing wrong. I attach all the files that may be useful to understand what not.

I'm not at my PC right now so checking your config.plist while out, BUT, I can see a couple of errors:

1) One of the EHCi renames is mis-typed (01)

2) You have a kext patch in place for HDMI audio. Disable this if using the FakePCIID kexts. They should not crash a Z390 system.