No Audio Devices - Realtek ALC AppleHDA [Guide]

[toleda]

or will non-booting not be an issue just non-loading of codec,

Non booting is not an issue with ssdt/HDEF. A non working ssdt means the no hdef problem is not solved.

 

[toleda]

I extracted AppleHDA.kext with Pacifier from my original Yosemite install

Fail. See Restore native AppleHDA [Guide]

 

[ammulder]

I am using a NUC5i7 (i7-5557U, Iris 6100, ALC 283) with El Capitan. Under Yosemite I used the audio_cloverALC-110_v1.0e.command script to enable audio (same machine) and it worked great. Under El Capitan, after running the script and rebooting, no audio device is present (only AirPlay options).

The one verify step I didn't understand was the AppleHDA.kext verification -- not sure how to check the codec name, codec ID, and layout-id in there. Here's the requested debug info:

• View attachment nuc5i7-with-hd6100-10.11.iojones
• View attachment AppleHDA.kext.zip
• View attachment console-sound-assertions.log (lots in here)
• 
• 
• View attachment cloverALC.log
• View attachment config.plist
• View attachment boot-log.txt
• View attachment SSDT-1.aml
• View attachment SSDT.aml

 

[toleda]

no audio device is present (only AirPlay options).

Install attached realtekALC.kext in EFI/CLOVER/kexts/10.10 and 10.11
Reply with new IOJones.

 

[ammulder]

OK, I copied it into EFI/CLOVER/kexts/10.10/ and EFI/CLOVER/kexts/10.11/ and restarted.

View attachment nuc-v2.iojones

 

[toleda]

OK, I copied it into EFI/CLOVER/kexts/10.10/ and EFI/CLOVER/kexts/10.11/ and restarted.

Install attached AppleHDA.kext with KextBeast, Kext Utility, etc. Reply with IOJones.

 

[ammulder]

OK, I installed the kext with KextBeast and rebooted. Here's the update:

View attachment nuc-v3.iojones

Can I ask what you're looking for in there?

 

[toleda]

Can I ask what you're looking for in there?

No audio is working. Did audio work in Yosemite? If yes, attach IOJones.
See Post #1.

 

[ammulder]

Audio did work in Yosemite. It was very good, actually. I did an in-place upgrade to El Capitan and that's when the audio device disappeared. (I could try a clean install if you think it would make a difference.)

Because of the upgrade I don't have Yosemite running on it right now, but this is an IOJones from when I did: View attachment nuc5i7.iojones

 

[toleda]

I did an in-place upgrade to El Capitan and that's when the audio device disappeared.

Install AppleHDA.kext, Post #127, Intel Nuc 2.0 (Broadwell) - Page 13
Backup current AppleHDA.kext. Temporarily remove ALC kext patching.
Reply with IOJones.