ru379 Posted June 26, 2021 Share Posted June 26, 2021 (edited) Hi, I installed macOS Monterey on an old hardware, all works, ethernet, graphics, usb, but when I try to enable audio with applealc kext and alcid=1 argument, it doesn't work. My hardware is: i5-540, 8gb of ram, 500gb hdd, nvidia geforce gt 710 and Gigabyte GA-P55M-UD2 rev. 1.0 with ALC888B codec. I tried other layout ids and same result. On system preferences doesn't appear any sound device. I tried to fix HDMI sound with SSDT-HDMI-NVIDIA-PEG0.aml and HDMIAudio.kext to conect my hedset to my monitor but same result, please help and thanks in advance. Edit: audio works on Catalina and Big Sur EFI.zip Edited June 26, 2021 by ru379 Quote Link to comment Share on other sites More sharing options...
ru379 Posted June 26, 2021 Author Share Posted June 26, 2021 Ok sorry, fixed I just used the lastest AppleALC.kext and Lilu.kext beta version in which support for macOS Monterey is added Quote Link to comment Share on other sites More sharing options...
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