Mavericks: No Audio - Realtek ALC AppleHDA [Guide]

[toleda]

Dunno if this is a right fix. But no error show up.
should I modify the amp of pathmap?

Shot the messenger, bad advice.
No.
The biggest issue is not the speakers, its content and players. What it is the audio format for your 7.1 content and what player are you using?

Linked to patched 10.9.4/1150/9 Series AppleHDA.kext, Quick Fix for Onboard Audio on 9 Series Motherboards - Page 12

 

[toleda]

is there is an actual fix for "no audio after sleep/wake"

Off topic, this thread addresses "No audio devices".

Apple made major architectural changes to the 10.9.2 AppleHDA.kext to solve no audio/wake problems on native hardware. Apple support forums suggest the problem is not resolved and may never be. Understand the MultiBeast installed audio software is completely native, not one line of code is changed to get working onboard audio. For many, audio works well. For those that have audio quality problems, that is the consequence of non native hardware. Your choices are:
1. Wait for Apple to fix code that is no longer supported on unsupported hardware
2. Acquire native, supported hardware
3. Identify non native hardware that performs better than your current hardware
4. Install digital audio; HDMI, by far the best choice, or USB

There is no fix for the current release. Experiments are the only way to find any improvements for your specific system. Search can be very helpful; focus on the posts confirming success.

 

[kidalive]

Shot the messenger, bad advice.
No.
The biggest issue is not the speakers, its content and players. What it is the audio format for your 7.1 content and what player are you using?

Linked to patched 10.9.4/1150/9 Series AppleHDA.kext, Quick Fix for Onboard Audio on 9 Series Motherboards - Page 12

I`m using VLC.
You r right toleda, the binary bin patch only has cosmetic effect, the real issue is still there.. I checked IOjones and I found quite a few red crossed lines in AppleHDAEngineOutput@, AppleHDADrive, AppleHDAEngineInput, . Please check my IOreg and snapshots for detail. How to fix this?
View attachment IOjones shows HDEF red crossed line.zip

Current Pindata config used as below.

01471C10 01471D50 01471E01 01471F01 01571C20 01571D10 01571E01 01571F01 01671C30 01671D10 01671E01 01671F01 01771C40 01771D10 01771E01 01771F01 01871C50 01871D10 01871EA0 01871F90 01971C60 01971D90 01971E81 01971F02 01A71C70 01A71D10 01A71E81 01A71F01 01B71C80 01B71D40 01B71E21 01B71F02 01E71C90 01E71D10 01E71E45 01E71F01 01471C02 01B70C02

Current layout and pathmap used as below. I delete IntSpeaker from output in layout,
View attachment layout and pathmap.zip

 

[haggle]

Thanks for the response Toleda. I downloaded cliffom's slick little app that runs up in the menu bar. It has an option to auto-run after wake, so all is good. For those interested, check this thread

http://www.tonymacx86.com/audio/127...-sound-after-sleep-10-9-2-a-9.html#post851984

 

[toleda]

the binary bin patch only has cosmetic effect, the real issue is still there.

No idea where to even start.

 

[kidalive]

No idea where to even start.

Adding the codecverbs for the EAPD devices makes them working perfectly, the issue is after wake from sleep the devices lack amp, and volume dame low. I think there is sth need be patched inside applehdacontoller.
Check below.
http://www.mydellmini.com/forum/forum-archive/2124-restoring-sound-after-sleep-mute.html

Get EAPD and control EAPD info from ALC1150 datasheet.

 

[toleda]

the issue is after wake from sleep the devices lack amp, and volume dame low.

See Dolnor/EAPD-Codec-Commander

 

[kidalive]

not a good fix

 

[toleda]

not a good fix

Not a good idea to dismiss the work of the EAPD expert.

 

[TimeWalker]

not a good fix

This is as good as it gets. It implements (see credits) the thing you are referencing. And if you are really keen on reading data sheets, then read the included readme extracted from Inteļ's High Definition Audio Datasheet on Immediate Verb Mechanism ..
I have carefully studied the behavior past 10.9.2 and the only way you are getting your EAPD enabled is by using my kext.