I’ve raised this on Pimoroni’s site (https://forums.pimoroni.com/t/pirate-audio-no-sound/14679/2) , but had little response.
I’ve set up the HAT and it worked OK with mopidy for some time while I worked on some code to play some MP3s and display a photo in response to some extra buttons. I tried a few iterations of hardware and ended up adding a Hack3r as the best way to fit things in a case.
Somewhere along the line the AMP stopped amping and and I have gone through a fresh Raspbian and mopidy install. I thought for a while GPIO25 (the DAC enable) had died, but that tests OK.
On the software side I expected mopidy to log somewhere if it failed to communicate with the DAC, but
I can find no references to that, so I’m not sure it’s hardware either.
BUT I’m left wondering: do I find a Header for my other PiZero and see if that makes any difference, or try another Pirate HAT, or do I dig deeper into mopidy?
Hi Oliver,
the main change from the hifiberry link was to comment out dtparm=audio=on. Both scripts I’ve tried (Pimoroni’s and Adafruit’s) seem to handle that… anyhow tried it both ways and no fix…
I’m running raspbain ‘Buster’, kernel 5.4.51 and that hasn’t changed since I was first running the Pirate board. FYI it the 3W amp version that I’m using.
As for mopidy, I guess I’m hoping for some error checking to say it got no response or something. Also, the behavior in the WWW (iris) is that the ‘play’ runs for 3-4 seconds then back to zero, which seems like it’s having a buffering problem.
Oliver,
I’ve gone back to a basic install with a different SD card. Still no sound output and iris is looping every 3-4 seconds.
BTW the pi was updating the kernel (without exactly telling me!) when the installation said it was doing a Software Update and going to the 5.4.51 kernel, so I skipped that and the problems exists with 4.19.118+
