I can see via the MyKextInstaller app that the AppleALC kext is not installed (a report by @pmhjr50)

September 15, 2026 · by @albert-mueller

I can see via the MyKextInstaller app that the AppleALC kext is not installed.

Ursprünglich gepostet von @pmhjr510 in #359 (comment)

Comments

@albert-mueller · September 15, 2026

@Medelcartelinc @gandolf243 any ideas?

@pmhjr510 · September 15, 2026

If you want to access my Mac remotely, I'll authorize you.

@pmhjr510 · September 15, 2026

An error occurred during installation: mv: rename /Users/ph/Desktop/AppleALC.kext to /Library/Extensions/AppleALC.kext: Resource deadlock avoided

@albert-mueller · September 15, 2026

If you want to access my Mac remotely, I'll authorize you.

I'm pretty sure that it is a root patch issue, and @Medelcartelinc is mostly writing the root patches, I only release them.
Remotely accessing your computer won't help me much, since by reading from what you said I can confirm that this is likely a root patch issue. Btw, I wouldn't imagine myself giving remote access to a stranger, it's not just a bad idea, it's dangerous - I could very easily get hacked like this.

@pmhjr510 · September 15, 2026

No problem, my friend, I understand. Let's wait and see. Thanks a lot for the help.

@Medelcartelinc · September 20, 2026

Hi! You're correct, AppleALC.kext was missing from your EFI. Apple dropped the native audio routing for your 2015 MacBook Air in macOS Tahoe, meaning you now require AppleALC to get sound working.

We accidentally forgot to enable AppleALC injection for your model in our EFI builder, so it wasn't being installed. I've just pushed a fix to our repository! In the next nightly build of OCLP, building OpenCore will properly inject AppleALC for your Mac.

@pmhjr510 · September 20, 2026

iMac Retina 5K, 27-inch, 2019 This is the model of my Mac. I'll wait for the overnight update to test it. Thanks. Em dom., 20 de set. de 2026 às 13:28, Matteo ***@***.***> escreveu:

…

*Medelcartelinc* left a comment (albert-mueller/OpenCore-Legacy-Patcher-T2#363) <#363 (comment)> Hi! You're correct, AppleALC.kext was missing from your EFI. Apple dropped the native audio routing for your 2015 MacBook Air in macOS Tahoe, meaning you now require AppleALC to get sound working. We accidentally forgot to enable AppleALC injection for your model in our EFI builder, so it wasn't being installed. I've just pushed a fix to our repository! In the next nightly build of OCLP, building OpenCore will properly inject AppleALC for your Mac. — Reply to this email directly, view it on GitHub <#363?email_source=notifications&email_token=BUJOFVXC6YLFCTXJ3Z33CRT5QAAUXA5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKNZVGEYDQMJVGU42M4TFMFZW63VHNVSW45DJN5XKKZLWMVXHJLDGN5XXIZLSL5RWY2LDNM#issuecomment-5751081559>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BUJOFVSC3JOMI77Z74DBF3T5QAAUXAVCNFSNUABGKJSXA33TNF2G64TZHMYTEMBXGYYTMMRUGY5US43TOVSTWNJUGU3DKMBXGM3TLILWAI> . Triage notifications, keep track of coding agent tasks and review pull requests on the go with GitHub Mobile for iOS <https://github.com/notifications/mobile/ios/BUJOFVRAMP47ULVDJT4IHLL5QAAUXA5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKNZVGEYDQMJVGU42M4TFMFZW63VHNVSW45DJN5XKKZLWMVXHJKTGN5XXIZLSL5UW64Y> and Android <https://github.com/notifications/mobile/android/BUJOFVSTZAUZBDMSLD54AQT5QAAUXA5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKNZVGEYDQMJVGU42M4TFMFZW63VHNVSW45DJN5XKKZLWMVXHJLTGN5XXIZLSL5QW4ZDSN5UWI>. Download it today! You are receiving this because you were mentioned.Message ID: ***@***.*** com>

@albert-mueller · September 25, 2026

Okay, fixed the AppleALC bug, can you try?
@pmhjr510

@pmhjr510 · September 26, 2026

It keeps getting stuck during startup after applying the patch, redirecting to the alternative recovery screen and prompting a reinstallation.

@albert-mueller · September 26, 2026

@Medelcartelinc

@pmhjr510 · September 26, 2026

Yes The Apple logo appears without the loading bar, the screen flashes twice, and the recovery screen appears. Em sáb., 26 de set. de 2026 às 05:32, Albert Müller < ***@***.***> escreveu:

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*albert-mueller* left a comment (albert-mueller/OpenCore-Legacy-Patcher-T2#363) <#363 (comment)> It keeps getting stuck during startup after applying the patch, redirecting to the alternative recovery screen and prompting a reinstallation. It goes straight into macOS Recovery? — Reply to this email directly, view it on GitHub <#363?email_source=notifications&email_token=BUJOFVSE7OQSY2R3TNK4LB35Q55KBA5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKOBUGQ3DEOJUGU4KM4TFMFZW63VHNVSW45DJN5XKKZLWMVXHJLDGN5XXIZLSL5RWY2LDNM#issuecomment-5844629458>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BUJOFVQTYBWQRU6QZAQ7IQ35Q55KBAVCNFSNUABGKJSXA33TNF2G64TZHMYTEMBXGYYTMMRUGY5US43TOVSTWNJUGU3DKMBXGM3TLILWAI> . Triage notifications, keep track of coding agent tasks and review pull requests on the go with GitHub Mobile for iOS <https://github.com/notifications/mobile/ios/BUJOFVR3U7TPWBNWUI67T5T5Q55KBA5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKOBUGQ3DEOJUGU4KM4TFMFZW63VHNVSW45DJN5XKKZLWMVXHJKTGN5XXIZLSL5UW64Y> and Android <https://github.com/notifications/mobile/android/BUJOFVURGVXIPUMSTO65ETD5Q55KBA5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKOBUGQ3DEOJUGU4KM4TFMFZW63VHNVSW45DJN5XKKZLWMVXHJLTGN5XXIZLSL5QW4ZDSN5UWI>. Download it today! You are receiving this because you were mentioned.Message ID: ***@***.*** com>

@pmhjr510 · September 26, 2026

[image: Arquivo de vídeo] <https://drive.google.com/file/d/13TuAfm_n3dhAhB7jWB_H3bgb7lrpUKOu> IMG_1184.mov <https://drive.google.com/file/d/13TuAfm_n3dhAhB7jWB_H3bgb7lrpUKOu> Em sáb., 26 de set. de 2026 às 06:41, Albert Müller < ***@***.***> escreveu:

…

*albert-mueller* left a comment (albert-mueller/OpenCore-Legacy-Patcher-T2#363) <#363 (comment)> @Medelcartelinc <https://github.com/Medelcartelinc> — Reply to this email directly, view it on GitHub <#363?email_source=notifications&email_token=BUJOFVRGL53N3H2LVMGRRR35Q6FM3A5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKOBUGUYTINRZG442M4TFMFZW63VHNVSW45DJN5XKKZLWMVXHJLDGN5XXIZLSL5RWY2LDNM#issuecomment-5845146979>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BUJOFVQZRB67TD4ELAGOY2D5Q6FM3AVCNFSNUABGKJSXA33TNF2G64TZHMYTEMBXGYYTMMRUGY5US43TOVSTWNJUGU3DKMBXGM3TLILWAI> . Triage notifications, keep track of coding agent tasks and review pull requests on the go with GitHub Mobile for iOS <https://github.com/notifications/mobile/ios/BUJOFVT6HY7NCPX3ZD5VYR35Q6FM3A5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKOBUGUYTINRZG442M4TFMFZW63VHNVSW45DJN5XKKZLWMVXHJKTGN5XXIZLSL5UW64Y> and Android <https://github.com/notifications/mobile/android/BUJOFVRMFMDWH4PMGIDC3W35Q6FM3A5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKOBUGUYTINRZG442M4TFMFZW63VHNVSW45DJN5XKKZLWMVXHJLTGN5XXIZLSL5QW4ZDSN5UWI>. Download it today! You are receiving this because you were mentioned.Message ID: ***@***.*** com>

@albert-mueller · September 26, 2026

[image: Arquivo de vídeo]
https://drive.google.com/file/d/13TuAfm_n3dhAhB7jWB_H3bgb7lrpUKOu
IMG_1184.mov
https://drive.google.com/file/d/13TuAfm_n3dhAhB7jWB_H3bgb7lrpUKOu

Em sáb., 26 de set. de 2026 às 06:41, Albert Müller <
@.***> escreveu:
…

Aha, it’s most likely to be a root patching bug then, @pmhjr510 . Do you know how to fix it, @Medelcartelinc ?

@albert-mueller · September 26, 2026

macOS 26.6.2 / macOS 26.7 has the reporter of this issue, and also 4.0.0.19004.5

@pmhjr510 · September 26, 2026 · edited

macOS Tahoe 26.7 (build 25G229) iMac 2019 19,1 Intel core i9 Áudio Cirrus Logic CS8409 nativo OCLP T2 4.0.0.190004.5 - 4.0.0 alpha 19.4.5 HDEF PCI/ACPI: pci8086,a348 → presente Controlador 0x8086:0x7270 → presente layout-id = 16 → correto device-id = a348 → presente IOPCIResourced = Yes CurrentPowerState = 2 registered, matched, active I logged into Linux to check the audio information. <img width="1280" height="720" alt="Image" src="https://github.com/user-attachments/assets/0256c4bc-5d21-4ed1-9f68-dab2c0123534" /> <img width="1280" height="720" alt="Image" src="https://github.com/user-attachments/assets/d645b530-b151-4044-b48c-1134636f96a5" />

@pmhjr510 · September 27, 2026

Screenshots of 26.0 Beta (25A5279m) with audio active.
Reference data for the audio patch.

@albert-mueller · September 27, 2026

Screenshots of 26.0 Beta (25A5279m) with audio active. Reference data for the audio patch.

Okay, got it @pmhjr510 . @Medelcartelinc , do you know how to fix this?

@pmhjr510 · September 27, 2026

Imac19,1 Em dom., 27 de set. de 2026 às 07:52, Albert Müller < ***@***.***> escreveu:

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*albert-mueller* left a comment (albert-mueller/OpenCore-Legacy-Patcher-T2#363) <#363 (comment)> Hi @albert-mueller <https://github.com/albert-mueller>, thanks for the report! We need to know *which Mac* this is about — the patches OpenCore Legacy Patcher applies depend on the exact model. Please edit your issue or reply below with your *model identifier*. You can get it by running this in Terminal: sysctl -n hw.model It prints something like Macmini8,1 or MacBookPro16,2. If you can't boot into macOS, the model name with its year works too (e.g. "Mac mini 2018", shown under → About This Mac). This comment will go away once the model is added. iMac 2019 — Reply to this email directly, view it on GitHub <#363?email_source=notifications&email_token=BUJOFVUPBZMPJVWU7QYPYKT5RDWPBA5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKOBVGUYTSNRVHEZKM4TFMFZW63VHNVSW45DJN5XKKZLWMVXHJLDGN5XXIZLSL5RWY2LDNM#issuecomment-5855196592>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BUJOFVUGOV2SANRRKUFRD2L5RDWPBAVCNFSNUABGKJSXA33TNF2G64TZHMYTEMBXGYYTMMRUGY5US43TOVSTWNJUGU3DKMBXGM3TLILWAI> . Triage notifications, keep track of coding agent tasks and review pull requests on the go with GitHub Mobile for iOS <https://github.com/notifications/mobile/ios/BUJOFVQFVHTFFJ33B2CBMJ35RDWPBA5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKOBVGUYTSNRVHEZKM4TFMFZW63VHNVSW45DJN5XKKZLWMVXHJKTGN5XXIZLSL5UW64Y> and Android <https://github.com/notifications/mobile/android/BUJOFVT3NDOHUETKS5O7X3D5RDWPBA5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKOBVGUYTSNRVHEZKM4TFMFZW63VHNVSW45DJN5XKKZLWMVXHJLTGN5XXIZLSL5QW4ZDSN5UWI>. Download it today! You are receiving this because you were mentioned.Message ID: ***@***.*** com>

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