No sound on Dell inspiron 7348 laptop

[hqxz556]

I recently tried installing Monterey (12.7.6) on my Dell 7348 laptop, and everything works well except for the audio.

 

I'm using Opencore 1.0.6 + Lilu 1.7.1 + AppleALC 1.9.6. My audio codec is ALC255.

I've tried almost all layout-ids under ALC255, but none of them worked.

Actually there is a layout-id which is made for dell 7348 by others under ALC255, so I believe my problem is not about codec mismatch.

 

The debug log shows something like

Quote

Lilu api: @ (DBG) got load request from AppleALC (196)
AppleALC init: @ (DBG) AppleALC bootstrap DBG-196-2025-11-03
AppleALC alc: @ (DBG) fixing audio plane name to HDAU
AppleALC alc: @ (DBG) found existing built-in
AppleALC iokit: @ (DBG) getOSData device-id has 160C value
AppleALC iokit: @ (DBG) getOSData revision-id has 9 value
AppleALC iokit: @ (DBG) getOSData vendor-id has 8086 value
AppleALC iokit: @ (DBG) getOSData alctcsel was not found
AppleALC alc: @ (DBG) disabling TCSEL update
AppleALC alc: @ (DBG) found alc-layout-id override 20
AppleALC alc: @ (DBG) fixing MaximumBootBeepVolume in hdef
AppleALC alc: @ (DBG) fixing MaximumBootBeepVolumeAlt in hdef
AppleALC alc: @ (DBG) fixing PinConfigurations in hdef
AppleALC alc: @ (DBG) found existing built-in
AppleALC iokit: @ (DBG) getOSData vendor-id has 8086 value
AppleALC iokit: @ (DBG) getOSData device-id has 9CA0 value
AppleALC iokit: @ (DBG) getOSData revision-id has 3 value
AppleALC iokit: @ (DBG) getOSData alc-layout-id has 14 value
AppleALC alc: @ (DBG) found 2 audio controllers
AppleALC alc: @ (DBG) validating 0 controller 8086:160C:9
AppleALC alc: @ (DBG) comparing to 0 mod 10DE:E1B
... ... ... ... many similar lines ... ... ... ...
AppleALC alc: @ (DBG) validating 1 controller 8086:9CA0:3
AppleALC alc: @ (DBG) comparing to 0 mod 10DE:E1B
... ... ... ... many similar lines ... ... ... ...
AppleALC alc: @ (DBG) missing ControllerModInfo for 0 controller
AppleALC alc: @ (DBG) missing ControllerModInfo for 1 controller
AppleALC alc: @ (DBG) missing ControllerModInfo for 0 controller
AppleALC alc: @ (DBG) missing ControllerModInfo for 1 controller
AppleALC iokit: @ (DBG) getOSData alc-delay was not found
AppleALC iokit: @ (DBG) getOSData alc-delay was not found
AppleALC alc: @ (DBG) IOHDACodecDevice::executeVerb with parameters nid = 0x00, verb = 0xF00, param = 0x00
AppleALC alc: @ (DBG) IOHDACodecDevice::executeVerb with parameters nid = 0x00, verb = 0xF00, param = 0x02

It looks like that my problem is the Intel controller is not supported.
I did some searching and found some tutorials on adding codecs, but none mentioned how to add a new controller.
I guess it should be something like adding some Patches into the Controllers.plist, but I don't know where to get the values for the Find and Replace fields needed for the patch.

Any suggestions would be greatly appreciated!

 

The specs of my laptop is:

 

| hardware	| type |
CPU	Intel i5-5200U (Broadwell)
iGPU	Intel HD Graphics 5500
Audio	ALC255/ALC3234
SMBIOS	MacBookAir7,2
MacOS	Monterey (12.7.6)

 

[Slice]

Consider VoodooHDA. It works with very good quality.

[deeveedee]

I'll second that.

Edited December 6, 2025 by deeveedee

[hqxz556]

1 hour ago, Slice said:

Consider VoodooHDA. It works with very good quality.

I tried the method mentioned in your signature, with VoodooHDA-3.0.3, but the system didn't ask to enable anything.

 

I rebooted my system again, and I think the VoodooHDA still not working:

 

 

The kexts and ACPI in my EFI are like below. Is there something conflicting with VoodooHDA?

 

[hqxz556]

The SIP seems not disabled before. I'm now disabled it from Recovery mode.

I found a tutorial here, and seems there are some configurations should do before VoodooHDA could take effect.

 

I found the VoodooHDA is loaded, and AppleHDADisabler seems working. However I don't find any HDA stuff in ioreg. Is this a good start to de any tother configuration?

Edited December 7, 2025 by hqxz556