Hi Toleda showing my last test with patched AppleHDA by Meroni with DSDT.aml and your HDAEnabler12, with HEX patch
since only the hex patch has brought no successes with the unpatched AppleHDA, I am now experimenting on.
In addition, I tried the PINConfiguration from my code_dump (from Linux and PINConfigurator modified) insert in your HDAEnabler.plist, this is the result-.
fascinating it is that is the AppleHDAController.kext loaded, see Figure 1
The enabler has found two codecs, Realtek and Nvidia. In IOReg, HDEF@14,2 is the Realtek codec, no AppleHDAController. In IOReg, there is also HDEF@0,1, the Nvidia codec with AppleHDAController. In both cases, there is no audio. Without the enabler and with dsdt edits, you can get HDMI audio to work. Until AppleHDAController shows up attached to HDEF@14,2 there is no chance for onboard audio.