HDMI Audio Output not working

I recently got High Sierra working on my Lenovo Z50-70 and after getting everything working to my liking I upgraded to Mojave. Now I always had problems with the HDMI audio and only got it working once before upgrading but now I am facing the same problem again:

I have three audio output devices: Speakers, Headphones and Digital-out (HDMI). The first two work perfectly fine but the HDMI does not work at all. I can't even change the volume (although I think that's how it should be). Before when I plugged in my Samsung TV it would pop up with another audio device called SAMSUNG but this is not happening at the moment.

Does anybody know what the problem is and how to fix it?

Some additional information: I use the kexts from this repository https://github.com/the-braveknight/Lenovo-X50-macOS

I also tried the suggestions form another thread (https://www.reddit.com/r/hackintosh/comments/8v1ofy/hdmi_audio_not_working_high_sierra_hackintosh/) but even though I have Lilu, Whatevergreen (instead of IntelGraphicsFixup) and AppleALC it still isn't working (I have the first two in my Clover folder and the latter in L/E but even tried putting all of them in the Clover folder).

submitted by /u/HuJohner
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