I don't have any audio through my HDMI anymore after I upgraded to the latest version (8.2.3). I lost the option to change the audio output device (it's set to Bluetooth audio which I think may not even be supported by my miniPC). Also, the passthrough settings section is completely empty. Setting the number of channels to 2 (and many other setting combinations) does not change this.
I found that some people have this issue with NVIDIA chipsets (which I have as well) that it defaults to bluetooth due to a bug.
I tried following the steps of the only workaround I could find for this issue: PulseAudio/Examples - ArchWiki
When I do
aplay -l
I get:
**** List of PLAYBACK Hardware Devices ****
card 0: NVidia [HDA NVidia], device 0: ALC662 rev1 Analog [ALC662 rev1 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 1: ALC662 rev1 Digital [ALC662 rev1 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
Following the guide I test if my HDMI still works:
aplay -D plughw:1,3 ~/downloads/sample.wav
Yay, the sound works! So far so good.
I proceed with:
load-module module-alsa-sink device=hw:0,3
I get a return code:
16
Not sure if this is a problem or not.
I continue with:
pulseaudio -k
result:
E: [pulseaudio] main.c: Failed to kill daemon: No such process
ehhh.. is this normal? Maybe it was already shut down or never even running?
I try to start it:
pulseaudio --start
result:
W: [pulseaudio] main.c: This program is not intended to be run as root (unless --system is specified).
The settings stay the same in kodi 
I tried another solution: editing /etc/pulse/default.pa
Can't be done. This directory seems restricted from editing / adding / renaming files altogether. Even for root (?)
Following daemon.conf.d brings me to a directory (~/.config/pulse-daemon.conf.d) where a README file explains I can create config files that would overwrite settings.
I create hdmi.conf (with access rights to 777).
#!/usr/bin/pulseaudio -nF
load-module module-alsa-sink device=hw:0,3
reboot
No change. 
I must be missing something awfully fundamental as not many people seem to have this issue?
