metabox p950ep6 - no sound in ubuntu lts desktop 18.0.4.1

hello,

followed the guide in https://gist.github.com/Brainiarc7/...335fd6#file-installing-linux-on-eurocom-q6-md for install for my new P950ep6 - got almost everything working ok .

seems to have intel pch audio/realtek alc1220

The trouble is audio - tested it with win10 - works ok [dual boot just for this]
in ults 18.0.4.1 live or installed - i get no output to speakers or to headphones [haven't really tried the hdmi audio but nvhda is up for the installed edition] - either via touching the volume slider, or chrome or aplay etc.


The extent of messing with audio was https://gist.github.com/Brainiarc7/...58ff9335fd6#file-06-iec958-stereo-output-conf
not working before though.

I'm not hugely familiar with what I should see in alsamixer or pavucontrol
but I suppose- I've tried the different profiles and none of the volumes look muted, auto mute is off.

does anyone have any suggestions/want to see more command output?

 

for the command output...

#lspci -v | grep -A7 -i "audio"

# aplay -l

$ pacmd
Welcome to PulseAudio 11.1! Use "help" for usage information.
>>> list-sinks

#lsmod

find /lib/modules/`uname -r` | grep snd

 

and a little bit from kern.log

 

oh an um, all patched and latest repo kernel

uname -r
4.15.0-36-generic

 

my alsa info output is here http://www.alsa-project.org/db/?f=23dc54d8214dff59af255aac661a31e2be286af5

 

hmmm it looks like maybe it's already fixed in the new alsa builds.
basically nothing worked and I nearly gave up but found this guide
https://help.ubuntu.com/community/SoundTroubleshootingProcedure

step 4 and just adding the ppa and installing the hda audio daily build works

sudo apt-add-repository ppa:ubuntu-audio-dev/alsa-daily

sudo apt-get update

sudo apt-get install oem-audio-hda-daily-dkms

reboot

then both alsa and pulse audio outputs work