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No Audio Device - OptiPlex 5070 SFF - OpenCore 0.6.2 - Catalina 10.15.7

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In your config.plist, you have the audio-id set in DeviceProperties and a conflicting "alcid=99" setting in boot arguments.

Only use one method, not both.
Yes that was a mistake
I booted multiple times only with the setting in Device Properties, but still nothin. Is it anything with my ACPIs?
 

pastrychef

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Yes that was a mistake
I booted multiple times only with the setting in Device Properties, but still nothin. Is it anything with my ACPIs?

I don't know if your system needs all those SSDTs... Mine only needs PMC and PLUG. An unnecessary HPET SSDT may cause problems.
 
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Intel version # > See Rules!
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I don't know if your system needs all those SSDTs... Mine only needs PMC and PLUG. An unnecessary HPET SSDT may cause problems.
No luck there either. I rebuilt my .aml files using SSDTTime (now only PLUG & PMC in ACPI folder), rebuilt my config.plist, tried all layouts and still no audio devices.
 

pastrychef

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No luck there either. I rebuilt my .aml files using SSDTTime (now only PLUG & PMC in ACPI folder), rebuilt my config.plist, tried all layouts and still no audio devices.

I really don't know what else to try...
 
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I think the 7070 SFF and 5070 SFF have the same audio device.

It had worked fine in Catalina with Clover bootloader and layout-id 11.
the Clover EFI here:

Just fresh installed BigSur with Opencore 0.6.3 on my Optiplex 7070 SFF, met the same problem with Audio.
AppleALC with id 11 doesn't work anymore, weird.
 
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Seems it's caused by IRQ conflicts.

Although Opencore doesn't have the hotpatches like Clover, the conflicts can be patched manually with SSDTTime.
I've generated SSDT-HPET.aml for my 7070SFF and now the audio works just fine with layout id 11.

here is my updated EFI
 
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Seems it's caused by IRQ conflicts.

Although Opencore doesn't have the hotpatches like Clover, the conflicts can be patched manually with SSDTTime.
I've generated SSDT-HPET.aml for my 7070SFF and now the audio works just fine with layout id 11.

here is my updated EFI
Thanks for this! I realized I didn't patch the HPET lines in OC and ran into audio issues!
 
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I also had issue with Optiplex (3050 SFF) where the alcid=11 didn't work by default.

But I finally got it working working. I followed the instructions at SSDTs: The easy way.

Booted Linux live, git-cloned SSDTTime, ran it (python SSDTTime), dumped DSDT (#8), then ran FixHPET (#1), grabbed the files from ./Result, put the .aml into my EFI/OC/ACPI, merged patches_OC.plist with my config.plist, rebooted and tadah, audio works. I was post poning this for a while, glad I finally got it sorted. Thanks webleon for the pointing in the right direction. This was my third attempt at getting it going.
 
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