aoxx Posted June 18, 2023 Share Posted June 18, 2023 Hi folks, I've been trying to figure this out for 8 hours, so I would really appreciate your help. The problem is that no HDMI Audio output is listed in System Preferences > Sound. Hackintool detects the Audio device from the discrete GPU, but it doesn't list a codec for it. I'm running Mojave on OpenCore. The GPU is MSI Radeon RX560. Lilu, WhateverGreen and AppleALC are installed. I would be really grateful if anyone could help me. Quote Link to comment https://www.insanelymac.com/forum/topic/356989-hdmi-audio-not-available/ Share on other sites More sharing options...
STLVNUB Posted June 18, 2023 Share Posted June 18, 2023 (edited) Running RX570 Here And Have HDMI Here I'm Using alcid=12 As A Boot Argument The Number You MIGHT Be Using May Be The Reason For Not Having It Edited June 18, 2023 by STLVNUB Quote Link to comment https://www.insanelymac.com/forum/topic/356989-hdmi-audio-not-available/#findComment-2806747 Share on other sites More sharing options...
aoxx Posted June 19, 2023 Author Share Posted June 19, 2023 (edited) 20 hours ago, STLVNUB said: Running RX570 Here And Have HDMI Here I'm Using alcid=12 As A Boot Argument The Number You MIGHT Be Using May Be The Reason For Not Having It God bess you. I had a different layout-id key for the onboard sound card under Device Properties in config.plist, but nothing for the GPU device and nothing in the boot-args. I added the boot-arg you suggested and it worked fine. Out of curiosity, how did you find the magic number 12? Did you try every number from 1 until...? The dortania guide suggests to check the github Wiki for the possible layouts corresponding to your codec; but I couldn't figure out what the codec was called in this case (for the audio chip on the RX570). In fact, I couldn't even find any info anywhere about what the audio chip is called and what its specs are. I wasn't even sure if RX570 was capable of outputting HDMI audio! There is 0 information online on this, so frustrating. Edited June 19, 2023 by aoxx Quote Link to comment https://www.insanelymac.com/forum/topic/356989-hdmi-audio-not-available/#findComment-2806793 Share on other sites More sharing options...
STLVNUB Posted June 19, 2023 Share Posted June 19, 2023 Just Grabbed The Number 12, I Think I Fluked It And It's Probably NOT The Right One, But HEY It Does The Job Quote Link to comment https://www.insanelymac.com/forum/topic/356989-hdmi-audio-not-available/#findComment-2806835 Share on other sites More sharing options...
Slice Posted June 19, 2023 Share Posted June 19, 2023 HDMI audio from RX570 is not needed in AppleAPC and any layout. Just don't disturb it! I know as I have it and tested. 1 Quote Link to comment https://www.insanelymac.com/forum/topic/356989-hdmi-audio-not-available/#findComment-2806836 Share on other sites More sharing options...
aoxx Posted June 21, 2023 Author Share Posted June 21, 2023 (edited) On 6/19/2023 at 9:27 PM, Slice said: HDMI audio from RX570 is not needed in AppleAPC and any layout. Just don't disturb it! I know as I have it and tested. I'm not sure what you mean by "is not needed". In my case I needed it as an alternative to the motherboard audio chip, so I had to find a way to make it available. Edited June 21, 2023 by aoxx Quote Link to comment https://www.insanelymac.com/forum/topic/356989-hdmi-audio-not-available/#findComment-2806888 Share on other sites More sharing options...
Slice Posted June 22, 2023 Share Posted June 22, 2023 On 6/21/2023 at 1:38 PM, aoxx said: I'm not sure what you mean by "is not needed". In my case I needed it as an alternative to the motherboard audio chip, so I had to find a way to make it available. There is a problem of other drivers intervention into the same device. I think there is AppleALC intervention into HDMI audio device. See my case. Internal audio (HDAS) is controlled by VoodooHDA and RX570 HDMI Audio controlled by the system's AppleGFXHDA.kext Quote Link to comment https://www.insanelymac.com/forum/topic/356989-hdmi-audio-not-available/#findComment-2807048 Share on other sites More sharing options...
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