ERROR: Failed to open "ALSA default"

[Tim Curtis]

Just wanna add to the community my discovery for fixing this issue when I found it.

This line was missing from my /boot/config.txt after a Bluetooth connection had dropped. Without that line ALSA wouldn't work.

Code:

dtparam=audio=on

I analyzed the code base and that particular setting is only manipulated in function cfgI2sOverlay() in /var/www/inc/playerlib.php. I also examined the other parts of the code base where config.txt is manipulated. It's not obvious to me how that line could be deleted.

I can never rule out bugs so if you have any insights as to what might have caused it to be deleted I'll try to repro.

-Tim