Comment # 5 on bug 1083195 from Raffaele Pertile

I've figured some of it while I was testing with fedora live. It had no audio
out of the box too! not even using the UCM from the backup (See attachment UCM
file 1 and 2) of my previous fedora installation. *But* an older UCM backup was
working instead (I had it tested it on opensuse previously, but probably
snd_hdmi_lpe_audio wasn't blacklisted at that time). If I replace the working
UCM with the "broken" one after loading pulseaudio and restart pulseaudio again
it works and I have headaset mic working as a plus (which is why I was using
it). So probably on my previous installation some of the state from the working
UCM was somehow able to survive reboot.
Working UCM (headset mic not working) is from
https://github.com/plbossart/UCM.git
It would be nice to figure out what's needed to have the headset mic working.
Maybe I should rather open an issue on plbossart's git about that.