Hi I have an unsupported codec I need help to add to ALC.
It's from a HP Zbook 17 G5. It shows as Conexant Unknown, The device Hex is 14F120D0 = Dec 351346896 = CX8400, but tried ID-12 and the speaker output stops working after about a minute, you have to select headphones, then back to speakers, and it works for about a minute then again silence. There are digital glitches sometimes, and no HDMI audio (with hda-gfx patch enabled, also there's no switch from internal to headphones and the external (headphone+mic) input is just noise. Same after waking from sleep.
I'm using Mojave 10.14.6
Attached are my voodoo and linux dumps.
Managed to build my custom AppleALC with my codec and layout info and everything works as long as I don't patch the battery info, so it must be a bug with the EC patches for battery.
Audio side is ok though.