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GUIDE: HDMI Audio
- Thread starter andrejkw
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Okay, I've fixed my own problem. To get 5.1 output on EVERYTHING through HDMI on my GTX 970, I had to change the settings in Audio Midi setup from 8ch to 2ch-24bit Integer. After that, I cycle through the settings to let the Onkyo receiver do the surround sound processing.
GUIDE: HDMI Audio
What you are getting in terminal is normal and it should be working. What GPU do you have?
Okay, updated 10.10.2 to latest version and now using the latest NVIDIA driver 346.01.01f01. Reinstalled the kext (using the 1.1 btw) but no difference. If I run the following in the Terminal
Code:sudo kextutil /System/Library/Extensions/HDMIAudio.kext
I get:
Code:Diagnostics for /System/Library/Extensions/HDMIAudio.kext: Code Signing Failure: not code signed kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext "/System/Library/Extensions/HDMIAudio.kext"
Any ideas? Thanks!
What you are getting in terminal is normal and it should be working. What GPU do you have?
MP1,1 os x 10.10.3 Working with HDMIAudio1,1 dev mode on
=Hennesie2000;20916381]A 1,1 and a 2,1 are basically the samething. You can upgrade the processors in a 1,1 to the same ones that are in a 2,1 and then flash the 2,1 firmware making it a 2,1.[/QUOTE]
ok i confirm HDMIAudio1,1 with dev mode on is working on a MP1,1
and thank you hennesie2000 for the advice and help.
i couldn't get it out of my head that i saw someone else post that their AMD gpu was working and not mine so i went back through the forum here and ran some commands you and another guy were bouncing off each other. i saw that i had a conflict Ati injector kext. so i deleted restarted rebuilt the cache and restarted again. and Poooof i was up and running.
Btw my 5770 is the apple version (2mdp and 1 dvi)
if you need me to pump out some thing from console that could help shed light on anything lmk
=Hennesie2000;20916381]A 1,1 and a 2,1 are basically the samething. You can upgrade the processors in a 1,1 to the same ones that are in a 2,1 and then flash the 2,1 firmware making it a 2,1.[/QUOTE]
ok i confirm HDMIAudio1,1 with dev mode on is working on a MP1,1
and thank you hennesie2000 for the advice and help.
i couldn't get it out of my head that i saw someone else post that their AMD gpu was working and not mine so i went back through the forum here and ran some commands you and another guy were bouncing off each other. i saw that i had a conflict Ati injector kext. so i deleted restarted rebuilt the cache and restarted again. and Poooof i was up and running.
Btw my 5770 is the apple version (2mdp and 1 dvi)
if you need me to pump out some thing from console that could help shed light on anything lmk
Thanks to the op for the kext. Finally upgraded to Mavericks and added a better gpu (for my purposes anyway). After pulling my hair out trying to get optical digital and Plex to play nice I remembered this thread. Two minutes later all is good in the world again . Thanks again!
. Thanks again!Hello andrejkw,
Would you mind to share the source code of the binary?
The reason I am asking is that I would like to activate it for radeon cards in powerpc models.
There are many old ppc being used as media centers and it would be grate to be able to direct audio to the DVI port.
Regards
Would you mind to share the source code of the binary?
The reason I am asking is that I would like to activate it for radeon cards in powerpc models.
There are many old ppc being used as media centers and it would be grate to be able to direct audio to the DVI port.
Regards
I didn't test the HDMI output since upgraded to 10.10.4. However, from memory, it's the same driver to activate the display port audio. It works flawlessly.
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Yes the same HDMIAudio.kext will enable audio out through HDMI, DisplayPort and DVI.
It's a Mac Pro 4,1, but turns out the speakers in my display have gone out. That was honestly the last thing I expected, especially since the monitor is fairly new. Guess I will have to contact LG for a replacement. Can confirm the HDMIAudio hack is still working with 10.10.4 using a different monitor.
How did you get the driver to say Yes? Mine still has No next to ATY...
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Once you install the HDMI audio kext properly, that line should show Yes. It was No before I install the driver.
I followed the instructions and got the confirmation message at the end, but yet it's still "No."
You likely need to add the kext-dev-mode=1 to your boot args.
Type this in terminal and press enter:
Code:
sudo nvram boot-args="kext-dev-mode=1This will allow to the kext to load with an invalid signature, as it has.
I just switched out my 660Ti with a 980Ti and found the kext wasn't loaded, so I tried to reapply it, disabled signing again, and rebooted... But it killed the Nvidia driver and since OS X doesn't support the 980Ti natively, I lost display and had to swap the cards back again...
Tried once more incase it was a fluke, but same results... Takes a few reboots to get to where I can switch back to the Nvidia driver, but still no audio out through the DP...
Tried once more incase it was a fluke, but same results... Takes a few reboots to get to where I can switch back to the Nvidia driver, but still no audio out through the DP...
Just to make sure, are you running Yosemite?
I am using a GTX 970 with 10.10.3 and I am not having any issues with audio out through HDMI, DP or DVI.
Yeah, sorry should have stated that... 10.10.3 Nvidia driver 346.01.2f04
Edit: should also add running a 4,1 that has been flashed with 5,1 firmware...
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I have the exact same set up as yours. I even disabled kext signing....no sound, no joy