OpenCore-Post-Install VS AppleALC

Rename PTS to ZPTS: https://github.com/dortania/OpenCore-Post-Install/blob/master/extra-files/FixShutdown-Patch.plist

I think that particular kext requires SecureBoot to be setup.

Source: https://github.com/dortania/OpenCore-Post-Install/blob/master/extra-files/SSDT-GPRW.aml https://github.com/dortania/OpenCore-Post-Install/blob/master/extra-files/GPRW-Patch.plist

I know many people have posted about this already and I know what the issue is related to. I have been trying for days to make the FixShutdown-USB-SSDT.dsl method from Dortania work but the instructions are very unclear.. This is actually my first time asking for help because I'm really stuck and don't know how to proceed.

Then I assumed that I need an editor that can open .aml/.dsl files and use it to find some text in the DSDT.aml, which then I have to paste into the FixShutdown-USB-SSDT.dsl. For this purpose I used MaciASL (which is also not mentioned in the instructions).

- Grabbed SSDT-USBX from here

Also download SSDT_USBX.aml from here;

Conexant CX20724 ISST Audio - AppleALC, , layout ID 13

https://github.com/acidanthera/AppleALC/wiki/Supported-codecs set alcid accordingly

I don't. Have you looked at the AppleALC wiki to see which IDs that might need? https://github.com/acidanthera/AppleALC/wiki/Supported-codecs

I have a Comet Lake laptop (i7-10510U & UHD 620) with the ALC294 Audio Card. I've tried all of the layout ID's listed on https://github.com/acidanthera/AppleALC/wiki/Supported-codecs. But all of them sound the same. I'm also using macOS Monterey... Any fix?

Do not enter the digits of your audio codec as your alcid. For example: "alcid=298" (ALC298). Use appropriate alcids from the AppleALC wiki: https://github.com/acidanthera/AppleALC/wiki/Supported-codecs

CPU: Intel Core i5-10500H (Comet Lake) [CPU slightly undervolted within BIOS] GPU: Intel UHD 630 (+ NVIDIA GeForce 1650 with Max-Q Design that's disabled via ACPI and boot-args) RAM: 12 GB Motherboard/Laptop Make and Model: MSI GF63 Thin 10SXCR Audio Codec: ALC223 Ethernet Card: RTL8111HS-CG Wifi/BT Card: Intel 802.11ax Wi-Fi 6 + Bluetooth v5.1 Touchpad and touch display devices: HID-Compliant Touchpad (Used VoodooI2C for touchpad) BIOS revision: -

Use linux to find out your audio codec (ALC...) and use this to narrow down the layout ids you could use. Try all of them and see which one works. Good luck!

So..i have a Lenovo Legion 7i Laptop with Realtek ALC287 audio codec, i've used layout-id 11 and 21, (21 seems to be better, since an internal and external mic device seems to be appearing on the System Preferences) however, although slider, volume, works...i still got no audio (both input and output), been surfing around and got to this link : https://github.com/acidanthera/AppleALC/wiki/Dumping-processing-coefficients