Comment # 27 on bug 1171246 from Gabriele Tettamanzi

(In reply to Takashi Iwai from comment #24)
> Heh, I'm fine to go ahead if you can be patient enough ;)
Take your time, it should be great if we could fix it consistently with Leap
15.2 release schedule.

> My rough guess is again some missing mixer bits that are needed to be set up
> in UCM profile

Fresh install of 15.2 RC build 671.5, Plasma.

uname -r
5.3.18-lp152.17-default

cat /proc/asound/cards
 0 [PCH            ]: HDA-Intel - HDA Intel PCH
                      HDA Intel PCH at 0xd0714000 irq 90
 1 [chtmax98090    ]: chtmax98090 - chtmax98090
                      GOOGLE-Quawks-1.0-Quawks

Pulseaudio does not show the sound card controls.

I first tried my old chtmax98090 UCMv1 profile, but testing it with alsaucm it
was blaming about missing GOOGLE-Quawks-1.0-Quawks folder/profile.

I removed the chtmax98090 profile and I added  GOOGLE-Quawks-1.0-Quawks UCMv1
profile (attachment #838522 [details]), also improving the Internal Mic and Headset Mic
device section according to the modifications you made in UCMv2 profile.
alsaucm worked with no errors.

After reboot, pavucontrol-qt shows the sound card control but no sound is
coming from it. I inspected alsa parameters by alsamixer: they look good to me. 

I attached the alsa-info report for this condition (#838521).

A couple of additional notes:
- pavucontrol-qt reports "No protocol specified", I never noticed it before...
- I tried to change the string "chtmax98090" to "GOOGLE-Quawks-1.0-Quawks" in
the HiFi.conf file, but alsaucm gives errors in this condition, therefore I
reverted it.