Helvegen 0 Posted October 12, 2020 Share Posted October 12, 2020 What do I need to do to make hdmi audio work? I already have the latest version of WhateverGreen in the efi folder, in the hackintool application it appears like this in the screenshot I sent, in the sound settings the hdmi audio output appears, but I can't increase or decrease the volume and it doesn't come out sound on the loud speaker of the tv that is connected to the pc, has any boot-arg that needs adc in the config.plist or has to inject something somewhere else? I tried to use a kext that I found researching about it called hdmiaudio.kext but without success, and I don't have speakers to use on the motherboard's sound output Quote Link to post Share on other sites
Hervé 2,137 Posted October 13, 2020 Share Posted October 13, 2020 For HDMI audio, controls are restricted to the HDMI device itself. As such, no action/control from macOS outside the initial selection of the HDMI output device. So, once you've selected your HDMI audio output, you'll have to adjust audio level/volume on your TV set itself. Of course, you'll have to set your TV on/to the relevant HDMI input as well. Apologies if I mention the obvious. Quote Link to post Share on other sites
Helvegen 0 Posted October 13, 2020 Author Share Posted October 13, 2020 Thanks for the answer, but even increasing the volume of the tv, there is no sound coming from macOS, I believe it is a driver problem or having to inject something somewhere, I have tried different versions of WhateverGreen, AppleALC, I tried to install both Catalina and BigSur to see if the problem solved, but without success, I read about injecting framebuffers to make hdmi audio work, but I don't know what that would be Quote Link to post Share on other sites
Hervé 2,137 Posted October 13, 2020 Share Posted October 13, 2020 In the end, it should be a matter of SMBIOS and/or graphics card property injection. If you have the HDMI device listed as audio output, it's a 1st step in the right direction. You should check your IOReg with IORegistryExplorer and see what codec/driver registers against the HDAU device (it's the expected HDMI audio output device as opposed to built-in HDEF device). Quote Link to post Share on other sites
Helvegen 0 Posted October 13, 2020 Author Share Posted October 13, 2020 Would it be this? Quote Link to post Share on other sites
Hervé 2,137 Posted October 13, 2020 Share Posted October 13, 2020 Save and post your IOReg. Those screenshots are not readable. Quote Link to post Share on other sites
Helvegen 0 Posted October 13, 2020 Author Share Posted October 13, 2020 here it is iMac de João.ioreg Quote Link to post Share on other sites
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