Audio - HDMI Audio AppleHDA [Guide]

[giacomoleopardo]

Something's wrong.
Followed your instruction to add second GFX0. Here's the result with Apple Cinema Displays to dp1 +dp2 + Asus VN247 to HDMI (no devices plugged into first GFX):
all of HDMI audios show up in System Preferences, but actually none of them is working (silent).

Attached ioreg + dsdt

EDIT:
Adding Futomaki (proper framebuffer for R9 280X) like you suggested gives me just two monitor. I guess some binary patch is needed, as explained here

 

[toleda]

all of HDMI audios show up in System Preferences, but actually none of them is working (silent).

​

guess some binary patch is needed

Not clear why the dsdt is patched differently than than the PEG1 example; connector-type injection is unused with AMD graphics cards and should be removed as posted.

In PEG1, GFX0 and HDAU use onboard-1 as posted; edited dsdt.

For all ports, the Futomaki likely requires specific connector edits. HD7750 example, see [Case_Studies]_AMD-HD7xxx_HDMI_Audio_v2.pdf

Edited: 7/31/15

 

[annualstatement]

Hi guys. I’m new to this and find myself stuck. I installed yosemite 10.10.4 via the multibeast guide and have internal audio via multibeast. Im trying to follow the guide (post #1)but I am having a difficult time making hdmi audio to work. I’m trying to just get the audio through HDMI via integrated GPU (HD4600). I don’t have any graphic card installed and don’t plan to. I have followed the first guide and know I have a 9 series (Asus z97m-plus), so i chose column 1 (8), column 2 (HD4600-dmi audio dsdt or ssdt guide), and column 3 (OS X hdmi audio dsdt guide). At step 1. AppleIntelFramebufferAzul.kext (HD4600 dsdt or ssdt guide) I chose option A. However, when i’m searching for GFX02 (HD4600+-HD4000-HD3000_Framebuffer_Edits guide), my AppleIntelframebuffer@2 is port number 0x0. Which option would I choose to download? And after that, I go to step 2 for 9 series [Guide]_OS_X_hdmi_audio-dsdt_v2.1-2) and begin compiling? Thanks in advance.

1.No HDMI audio via onboard HDMI
2.Yosemite 10.10.4/Asus z97m-plus/latest bios 2802 /i5 4460/ no GFX

 

[toleda]

my AppleIntelframebuffer@2 is port number 0x0.

Normal for unpatchrd framebuffer.
dsdt is edited, what patch?
dsdt is missing, attach.

 

[AngelThMan]

Hi Toleda,

Here's what I'm experiencing. Can you help?

When I connect the HDMI cable to my TV, I get this weird image:



The HDMI audio doesn't work at all. I've tried your Series 9 guides: AMI Clean Compile, Enable LPC, Nvidia 4600 2. I got no errors but many warnings. I shut down, plugged in the hdmi cable, rebooted, and tried to select audio output, but there was no device. So no hdmi audio.

 

[annualstatement]

Sorry about that. Here is my dsdt. I didn't have one in my extra folder of chimera, so i followed ([Guide]_OS_X_hdmi_audio-dsdt_v2.1) to save a native one.

 

[toleda]

Here's what I'm experiencing.

See Problem Reporting, Post #1, attach requested files.

 

[toleda]

my dsdt.

Edit org.chameleon.Boot.plist/HDAEnabler/No (from Yes)
MaciASL/native dsdt, apply 9series patches:
1. AMI-Clean_Compile-9series
2. AMI-HD4600-AMD-Nvidia-A1
Compile, save and Install.

Edit Azul framebuffer
Reply with edited dsdt, ocB.plist and IOReg,

 

[annualstatement]

Edit org.chameleon.Boot.plist/HDAEnabler/No (from Yes)
MaciASL/native dsdt, apply 9series patches:
1. AMI-Clean_Compile-9series
2. AMI-HD4600-AMD-Nvidia-A1
Compile, save and Install.

Edit Azul framebuffer
Reply with edited dsdt, ocB.plist and IOReg,

I have applied the patches to my dsdt file, however, i had some warnings but no errors. I changed HDAenabler to NO and installed azul frame buffer option a but still don't get anything. This time nothing shows up under sound options.

 

[toleda]

This time nothing shows up under sound options.

Installed HDAEnabler1.kext, why?
Disables all audio, remove and restart.
Reply with new files.