Alan McConnell wrote:

> 0 [PCH            ]: HDA-Intel - HDA Intel PCH
> HDA Intel PCH at 0xdf320000 irq 142
> 1 [NVidia         ]: HDA-Intel - HDA NVidia
> HDA NVidia at 0xdf080000 irq 17
> I have no idea what the above means.  Presumably one or both are
> functional.

So which one is your preferred card (where your audio system is plugged in)?
Have you tried setting the other in the Output configuration of pulse audio?
Before upgrading - did you use pulse or plain alsa?

arecord -l
can help see the cards in their order

arecord -L
will give you more detailed information, which you can use in aplay to test
each card directly

aplay -Dsysdefault somewavfile.wav
aplay -Dplughw:CARD=PCH,DEV=0 somewavfile.wav

After I upgraded to jessie mixer was muted. Unfortunately alsamixer is
hooked to the default pulse audio, so to get it working with the card
directly rather with pulse I use alsamixer -c0 you can also go for
alsamixer -c1

BTW alsa is not a process running so ps -A  | grep alsa does nothing.

I hope this helps

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