I bought another sd card and again installed NOOBS v3.2.0 on it.   Sound
worked both over hdmi and analog, with
speaker-test -t sine -f 1000 -c 2 -s 1
and
speaker-test -t sine -f 1000 -c 2 -s 2
sounding over left and right analog channels.   As far as I could tell the
loudspeaker rightclick menu retained its checkmark, and the volume slider
stayed where it was when changing from analog to hdmi or vise-verse

Than I installed Bluetooth:
sudo apt-get update (otherwise the following throws a number of errors)
sudo apt-get install bluetooth bluez blueman

I noticed it updated a number of things, including some pulseaudio stuff.
I than re-did the above speaker test and got only mono sound.   The tickmark
didn't want to stick anymore, and the volue slider dropped back to almost
zero on every analog  hdmi change.  :-(

It looks that /something/ that got updated doesn't play all to well with
noobs v3.2.0 ...

I than ran sudo apt-get upgrade (and rebooted) to see if it would help.
Alas, it didn't.  :-(

Although I still have analog sound on this installation, its just mono with
disappearing tickmarks and dropping-to-near-zero volume sliders.

And it ofcourse doesn't explain why I do not have sound on the other
installation.

Regards,
Rudy Wieser

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