Matjaž Depolli

Oh, sorry Igor, that's what I meant by reset - a complete power cycle. It did not work at the time But now everything has been fine for a couple of days. No sound problems whatsoever.

Igor, I thought so too, but the sound problem persisted on restart... Therefore I guess that could not have been the case. But it's been only 3 days with the OPI now, I'll report if I encounter these problems again.

Thanks a lot RagnerBG for that step by step, it helped me a lot. I have a working smplayer now on the system. But I came here for a nother reason. My case unfolded (so far at least) like that: - booted my Orange PI PC with armbian - sound was working ok (I checked youtune only) over the HDMI sink (default is audio out, so that has to be switched manually) - I did some apt-get updates, put the device to sleep and whatnot - tried youtube again and sound was not working any more, averything was producing noise only; I tried switching speaker configurations and all the rest that is available through GUI, unplugged and re-plugged the hdmi, reset the device, everything to no avail - somehow it started working again today, while I was installing smplayer - now youtube is working, smplayer is working, but I still get no sound from some othe rweb sites with html5 player (181.fm for example). Well, I am happy so far. Hoping that the sound does not break again. The machine is ready to play cartoons for my kid, and it's time for the daddy to learn about those GPIOs onboard.