[OpenCore] Succesfully Installed Big Sur, but audio not works with alcid, creates Kernal Panic.

[taskrov]

Thank you. I don't think I can use your Haswell EFI directly, but I looked through it and what I have see seems all correct. I went through all sections, even generated SSDTs for my machine, but the audio device still does not show in the Sound System Preferences. Like I wrote elsewhere, I am using a USB sound adapter so I have sound. I was doing the same on Catalina, but since everything works even better on Big Sur I thought I would look into getting the ALC221 working as well. Maybe someone has other ideas.

 

[trs96]

Maybe someone has other ideas.

Are you using alcid= or this layout-id ? Can only use one or the other not both.

 

[taskrov]

I attached you my EFI folder ( Without the Platform Info )

I followed this method: https://dortania.github.io/OpenCore...al/audio.html#making-layout-id-more-permanent for sound, so if still not working with my EFI, please follow the methods in the above link.

Hmm. I followed that and still nothing. Attached is my EFI folder. Anyone else have ideas to try?

 

[taskrov]

Are you using alcid= or this layout-id ?

View attachment 501752

Just the layout-id. See my EFI folder.

 

[Feartech]

Hmm. I followed that and still nothing. Attached is my EFI folder. Anyone else have ideas to try?

you haven't added in your alcid to either boot arguments or under your pci devices

An iDiot's Guide To Lilu and its Plug-ins

An iDiot's Guide To Lilu and its Plug-in's Last Update: 22nd Jan 2021 (Add note about OpenCore config.plist modifications) About this Guide Note: This guide was written when Clover was the boot loader of choice as such the config.plist examples in this guide are mostley Clover specific ... if...

www.tonymacx86.com

 

[trs96]

Try using the HPET patch and the SSDT-HPET.

 

[taskrov]

you haven't added in your alcid to either boot arguments or under your pci devices

An iDiot's Guide To Lilu and its Plug-ins

An iDiot's Guide To Lilu and its Plug-in's Last Update: 22nd Jan 2021 (Add note about OpenCore config.plist modifications) About this Guide Note: This guide was written when Clover was the boot loader of choice as such the config.plist examples in this guide are mostley Clover specific ... if...

www.tonymacx86.com

This is what is in config.plist:

 

[taskrov]

Try using the HPET patch and the SSDT-HPET.

View attachment 501759

I dumped my DSDT and created SSDT-HPET with SSDTTime and not luck, but I will try the one you attached. I also updated config.plist.

Small progress. The audio devices show up and work, but machine reboots shortly after fully booted. See attached EFI folder to see if I did what you suggested. Thanks for you help.

 

[taskrov]

Try using the HPET patch and the SSDT-HPET.

View attachment 501759

Thank you. I forgot to reference SSDT-HPET in config.plist.

 

[dorincalugaru]

Thank you. I forgot to reference SSDT-HPET in config.plist.

View attachment 501784

Hello, it.s possible to attach your working EFI for me.
Thank You!