Opencore-Legacy-Patcher VS AppleALC

At a guess I would say probably using OCLP - https://github.com/dortania/OpenCore-Legacy-Patcher - lots of life left in old Mac’s using that tool !

I had this issue, too. But luckily, I've got a solution. First, you'll need to check your MacOS Sonoma version. If you're using 14.1 beta, this method will NOT work. In such cases, I recommend installing the official 14.0. Thankfully, this commit (https://github.com/dortania/OpenCore-Legacy-Patcher/commit/1aee2e5dfa12d10e218a51e4151ac2e96705ae9e) solved the problem! However, the latest OCLP 1.0.1 still doesn't have it. To use it, you can build OCLP from code or use the OCLP Nightly link found here. After you find the nightly link and download OCLP, build it onto your MBP, and after rebooting, install the patches. If you look carefully, you'll see that 'experimental T1 Patches' will be available in the list of post-installation patches.

From what I've assessed reading other posts, Monterey (Ventura has USB & stability issues) with OCLP 0.6.7 is the most stable install for this device (have not yet seen any reports using OCLP 1.0+, although happy to see some new non-Metal fixes going in). This is a bit of a bummer, as Monterey will not likely receive updates past end of 2024 (next year).

I'm not taking a position on OCLP being trustworthy or not, but at least the project appears to be 100% open source [0], which is more than we can say about Apple.

[0] https://github.com/dortania/OpenCore-Legacy-Patcher

Have you explored https://github.com/dortania/OpenCore-Legacy-Patcher?

I have used it before and, in my experience and everyone else I know who has used it, the vast majority of time the newer versions run absolutely fine with no issues. Occasionally some newer features don't work, but I'd but confident that 2015/2017 iMacs would be able to run the latest version no problem.

Link to pull request to track OLCP Sonoma support state, you can also read more info there: https://github.com/dortania/OpenCore-Legacy-Patcher/pull/1077

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