Getting ALC668 to work?

[nnvt]

Hi!

I usually use the VoodooHDA kext which works but on this laptop, it emits a humming noise through the headphones which is really annoying and it also doesn't auto change when plugging in headphones so I decided to try getting AppleHDA to work with my realtek ALC668.

I tried this kext: https://github.com/insanelydeepak/Patched_AppleHDA_Yosemite-10.10/blob/master/Laptop's/Realtek ALC/Realtek ALC668.zip and used the HDAEnabler3.kext as I was told to do in the readme.

After restarting, OS X now detects the audio devices but no sound is coming through, I can change the volume but no sound. When I plug in headphones, all I can hear is static. When unplugging the headphones it stops working altogether (little stop sign when changing volume)

Is there a way to get this audio device to work without using the VoodooHDA kext?

Thanks

 

[RehabMan]

Hi!

I usually use the VoodooHDA kext which works but on this laptop, it emits a humming noise through the headphones which is really annoying and it also doesn't auto change when plugging in headphones so I decided to try getting AppleHDA to work with my realtek ALC668.

I tried this kext: https://github.com/insanelydeepak/Patched_AppleHDA_Yosemite-10.10/blob/master/Laptop's/Realtek ALC/Realtek ALC668.zip and used the HDAEnabler3.kext as I was told to do in the readme.

After restarting, OS X now detects the audio devices but no sound is coming through, I can change the volume but no sound. When I plug in headphones, all I can hear is static. When unplugging the headphones it stops working altogether (little stop sign when changing volume)

Is there a way to get this audio device to work without using the VoodooHDA kext?

Thanks

http://www.tonymacx86.com/threads/faq-read-first-laptop-frequent-questions.164990/

 

[nnvt]

http://www.tonymacx86.com/threads/faq-read-first-laptop-frequent-questions.164990/

OK, I found an AppleHDA kext for my audio driver and it still gives me the same thing, I tried to patch my DSDT with Audio Level 3 or Audio Level 12 but there is nothing to patch, I noticed text like "layout-id" in the patch so I looked for that and nothing was found in my DSDT

 

[RehabMan]

OK, I found an AppleHDA kext for my audio driver and it still gives me the same thing, I tried to patch my DSDT with Audio Level 3 or Audio Level 12 but there is nothing to patch, I noticed text like "layout-id" in the patch so I looked for that and nothing was found in my DSDT

The ACPI guide has details on patching for AppleHDA. Read it carefully.

 

[vbo]

Third paragraph in this post details how to create an injector (dummyhda) for alc668: ALC 668 only works well after restarting from Windows

You'll need to inject layout-id 1 and have the usual dsdt patches required for audio (refer to RehabMan's guide). You'll also need codec commander to get sound after sleep.