No Sound - Realtek ALC AppleHDA [Guide]

[toleda]

Is it so impossible though that there might be an issue with the new z270 chipset / board?

No.

it's just the cause and effect thing that makes me wonder.

You are the cause.
The scripts exist to remove user error.
The only way a kext is pristine is a fresh install. Software Update installs files, not kexts.

 

[BeatsNSoul]

Is this still needed?

I would like this.

 

[ChrM]

KP is caused by IOGraphicsFamily (backlight controller)
When the KP is resolved, Set Audio ID: 1
Reply with new files.

ok, gave this another try.
downloaded current macOS installer, installed prestine kexts.
KP resolved.
Installed Patch using only audio_cloverALC-120_v1.0d.command, nothing else.
Audio ID set to 1.
Problem persists, new files attached.

Thanks!

 

[searose]

• Description of audio problem

Sound goes out intermittently after an upgrade from 10.11 to 10.12 - can’t seem to pin it to sleep/wake or other behaviour. Rebooting fixes the issue, however I’m hoping something seems obvious from the diagnostics below.

• OS X version/motherboard model/BIOS version/processor/graphics

OS X 10.12.3, GA-Z97X-UD3H, F6 BIOS, i7-4790K, Nvidia GTX 760

• Procedure/Guide Used
• Terminal Saved Output (if Terminal script run)

Used cloverALC script, see .ZIP file for output.

• Copy of IOReg (Tools 1.1) or IOJones (Tools 1.2)

See .ZIP file for IOReg output

• System/Library/Extensions/AppleHDA.kext (10.11/hidden)
• System/Library/Extensions/AppleHDAxxx.kext (if installed)

Saved AppleHDA.kext to .ZIP file; no other AppleHDA kext’s on S/L/E or L/E

• Console/All Messages/kernel Sound Assertions - select/Save Selection As:

There were no kernel Sound Assertions

• Screen shots:

All 3 in .ZIP file and labelled as such.

• Clover (if installed)

Config.plist and boot log in .ZIP

• Speakers and/or microphone

Logitech THX speakers connected to green port on motherboard, selected second Line Out device (per png file in .ZIP)

 

[toleda]

problem persists

If the problem is not sound, IOReg shows no audio playing.
See Post #1/I. No Sound/1. Audio Outputs/1 Speakers
Run the experiment and attach new IOReg

 

[toleda]

Logitech THX speakers connected to green port on motherboard, selected second Line Out device

Result, no sound; try Internal Speakers <> green port

 

[ChrM]

If the problem is not sound, IOReg shows no audio playing.
See Post #1/I. No Sound/1. Audio Outputs/1 Speakers
Run the experiment and attach new IOReg

as i said earlier, i can't play any media that includes audio. i press the play button, but it doesn't respond (tested: Quicktime, iTunes, YouTube). i checked the console, this is what shows up:

default    14:41:29.093161 +0100    coreaudiod    HALS_IOA1Engine.cpp:221:_StartIO:  HALS_IOA1Engine::_StartIO: the call to the driver failed, Error: 0xE00002D8
default    14:41:29.093273 +0100    coreaudiod    HALS_IOContext.cpp:1578:IOWorkLoop:  HALS_IOContext::StartIO: failed to start the hardware
default    14:41:29.093317 +0100    coreaudiod    <Missing Description>

i attached the full log that appeared (including lots of "Sound assertion in AppleHDAEngine" messages), but probably those ones are the crucial ones.

VLC lets me play a mp3 (probably because it operates independent from os libraries) but it shows a similar error in console:

default    14:46:40.794615 +0100    VLC    HALC_ProxyIOContext.cpp:958:IOWorkLoop:  HALC_ProxyIOContext::IOWorkLoop: the server failed to start, Error: 0xE00002D8

to be sure i attached a current ioreg while vlc pretends to play a file.

 

[searose]

Result, no sound; try Internal Speakers <> green port

I selected Internal Speakers and used the green port - result is no audio. I went back to the black port and second Line Out and I have audio again.

The trouble is that it's intermittent - I believe it's related to sleep/wake, however sometimes audio works after waking. Did the logs and IOReg output look good to you?

Many thanks!

 

[toleda]

press the play button, but it doesn't respond

As stated previously, something is broken; clean install required.

 

[toleda]

trouble is that it's intermittent - I believe it's related to sleep/wake

Intermittent is not related to wake/sleep. Off topic.
Verify config.plist/CPU has no frequency settings and UseARTFrequency/NO