I have Volumio 3.198 on RB Pi 4,and HiFiBerry DAC+ Pro. I am not sure the DAC is recognized. When looking at playback settings I see “Adafruit MAX98357”, and the command
aplay -l
gives
**** List of PLAYBACK Hardware Devices ****
card 0: b1 [bcm2835 HDMI 1], device 0: bcm2835 HDMI 1 [bcm2835 HDMI 1]
Subdevices: 4/4
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
card 1: Headphones [bcm2835 Headphones], device 0: bcm2835 Headphones [bcm2835 Headphones]
Subdevices: 4/4
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
card 2: MAX98357A [MAX98357A], device 0: bcm2835-i2s-HiFi HiFi-0 [bcm2835-i2s-HiFi HiFi-0]
Subdevices: 1/1
Subdevice #0: subdevice #0
If I select (as it should be) as output device HifiBerry DAC+ Pro, I get the “alsa” error. If I keep Adafruit I get no errors but no sound either.
Francesco