No audio through analog output

Hello,

I have been searching for a few days now but I'm unable to find a solution to my analog audio problems.

I got a Dell Wyse 3040 that was discarded for a faulty system boot. I decided to experiment with it and installed LibreELEC on it in no time. Almost everything works perfectly the only one that I haven't figured out is the audio is not going through the analog jack connect to my amplifier (cable and amplifier works from smartphone, laptop and tablet devices).

The audio via DisplayPort to HDMI converter works well but the 3W built-in speakers are crap.

I google-d hours of reading but I cannot get much out of my finding. I consider myself advance user in Linux (running several type Linux servers at home, VPN, DNS, NextCloud, etc) but I cannot figure out this analog audio output issue.

When Kodi is set to ALSA: analog audio still gets out of HDMI (go figure out).

OS: LibreELEC 9.2.4 Linux Generic x86_64

Board Specs (full details from Dell website)

BIOS: 1.2.5 (latest version available)

CPU: Intel Cherry Trail x5 Z-8350 with built-in graphics

RAM: 2 GB

Storage: 8 GB

Ethernet: 1Gb/s

USB: 3x USB Gen2 - 1x USB Gen3

Video: 2x DisplayPort

Audio: Universal jack (appears to be combo stereo + mic) and DisplayPort Passthrough

--Edit for audio chipset info: Realtek ALC5672

aplay -L
null
  Discard all samples (playback) or generate zero samples (capture)
default:CARD=Audio
  Intel HDMI/DP LPE Audio, Intel HDMI/DP LPE Audi
  Default Audio Device
sysdefault:CARD=Audio
  Intel HDMI/DP LPE Audio, Intel HDMI/DP LPE Audi
  Default Audio Device
hdmi:CARD=Audio,DEV=0
  Intel HDMI/DP LPE Audio, Intel HDMI/DP LPE Audi
  HDMI Audio Output
hdmi:CARD=Audio,DEV=1
  Intel HDMI/DP LPE Audio, Intel HDMI/DP LPE Audi
  HDMI Audio Output
hdmi:CARD=Audio,DEV=2
  Intel HDMI/DP LPE Audio, Intel HDMI/DP LPE Audi
  HDMI Audio Output
default:CARD=chtbswrt5672
  cht-bsw-rt5672, 
  Default Audio Device
sysdefault:CARD=chtbswrt5672
  cht-bsw-rt5672, 
  Default Audio Device

aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Audio [Intel HDMI/DP LPE Audio], device 0: HdmiLpeAudio [Intel HDMI/DP LPE Audi]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 0: Audio [Intel HDMI/DP LPE Audio], device 1: HdmiLpeAudio [Intel HDMI/DP LPE Audi]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: Audio [Intel HDMI/DP LPE Audio], device 2: HdmiLpeAudio [Intel HDMI/DP LPE Audi]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: chtbswrt5672 [cht-bsw-rt5672], device 0: Audio (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: chtbswrt5672 [cht-bsw-rt5672], device 1: Deep-Buffer Audio (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0

So I guess from these command I want these to be default audio:

aplay -L
default:CARD=chtbswrt5672
  cht-bsw-rt5672, 
  Default Audio Device
sysdefault:CARD=chtbswrt5672
  cht-bsw-rt5672, 
  Default Audio Device

aplay -l
card 1: chtbswrt5672 [cht-bsw-rt5672], device 0: Audio (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0

I don't know what type of information (logs, Kodi settings, etc) you may need so I let you post any requests in your replies.

Some help is required I'm afraid and as I'm new to Kodi and I may miss the obvious, in that case sorry if I upset anyone. Going back to my search just in case I find something.

Thanks

After further reading and other finding related same hardware, seems like this audio will be working only on Linux kernel v5... Sadly I didn't find any positive information to add drivers manually to LibreELEC, so I guess I will have sadly wait LibreELEC v10.