No Audio with Realtek ALC892

augsburgboa · Apr 18, 2021

Hey guys, i need your help. I just installed BigSur on my PC and everything except Audio is working fine. I copied Lilu/AppleALC.kext to /kext and changed the layout to =1 but it still doesnt work. What else could i do?

UtterDisbelief · Apr 18, 2021

augsburgboa said:
Hey guys, i need your help. I just installed BigSur on my PC and everything except Audio is working fine. I copied Lilu/AppleALC.kext to /kext and changed the layout to =1 but it still doesnt work. What else could i do?

Hi there.

You should try a few more of the layout IDs for this codec. There's a good chance it will be 1, 2 or 3 but there are several others MSI might have used.

Scroll down to ALC892 in this list and you will see what I mean:

Supported codecs

Native macOS HD audio for not officially supported codecs - acidanthera/AppleALC

github.com

augsburgboa · Apr 18, 2021

UtterDisbelief said:
Hi there.

You should try a few more of the layout IDs for this codec. There's a good chance it will be 1, 2 or 3 but there are several others MSI might have used.

Scroll down to ALC892 in this list and you will see what I mean:

Supported codecs

Native macOS HD audio for not officially supported codecs - acidanthera/AppleALC

github.com

I tried everyone of them, none seem to work. What else could i do?

EDIT: I attached my config.plist

UtterDisbelief · Apr 18, 2021

augsburgboa said:
I tried everyone of them, none seem to work. What else could i do?

EDIT: I attached my config.plist

Okay.

As you have chosen to use the alcid boot-argument to specify your layout-id, did you reset the NVRAM before each reboot when testing?

augsburgboa · Apr 18, 2021

UtterDisbelief said:
Okay.

As you have chosen to use the alcid boot-argument to specify your layout-id, did you reset the NVRAM before each reboot when testing?

Nope, how do i do that?

Middleman · Apr 18, 2021

augsburgboa said:
I tried everyone of them, none seem to work. What else could i do?

EDIT: I attached my config.plist

Keep trying! You still have 4, 5, 7, 12, 15, 16, 17, 18, 20, 22, 28, 31, 90, 92, 97, 99 and 100

Gigamaxx · Apr 19, 2021

There were a few items in the config.plist. I removed these, you may want to test this with a USB boot stick.

Warning!

Screen Shot 2021-04-18 at 10.18.44 PM.png

Devices should be in DevicesProperties section.

Screen Shot 2021-04-18 at 10.20.34 PM.png

There is another DSDT patch in ACPI that may not be correct?

Screen Shot 2021-04-18 at 10.24.43 PM.png

augsburgboa · Apr 19, 2021

Gigamaxx said:
There were a few items in the config.plist. I removed these, you may want to test this with a USB boot stick.

Warning!
View attachment 515596

Devices should be in DevicesProperties section.
View attachment 515597

There is another DSDT patch in ACPI that may not be correct? View attachment 515599

Thanks, i tried it with your plist, but i doesnt boot.

I ran "-v" as boot args, and the problem was that a kext wasnt refered to correctly in .plist. But audio still does not work. Should i try every sinlge config? ANd how do i reset NVRAM?

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No Audio with Realtek ALC892

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