Hifiberry Dac2 Pro not working

Volumio 3 Issues?

I’m using Volumio 3.251 and Hifiberry Digi2 Pro on Raspberry Pi 4 Rev 1.4 → there is no sound.
I tried to install HifiBerry OS on the same hardware and here the Digi2 Pro card works - so the hardware configuration seems to be OK !

Although in config.txt of HifiBerryOS it says “dtoverlay=hifiberry-dac” … Which seems to be the wrong audio card, but it works !!!

When I boot Volumio and configure I2S and hifiberry-dac, the device shows up in aplay -l, but there is still no audio:

volumio@volumio-kienberg:~$ aplay -l
**** 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: 3/4
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
card 2: sndrpihifiberry [snd_rpi_hifiberry_dac], device 0: HifiBerry DAC HiFi pcm5102a-hifi-0 [HifiBerry DAC HiFi pcm5102a-hifi-0]
Subdevices: 1/1
Subdevice #0: subdevice #0

The strange thing is that if I confugure any other hifiberry card it does not show in the aplay list…

Odd. There was a problem with your dac and the latest version of the Pi4, but that was resolved I thought with the latest os release. Try a search on the forum.

can you send a link to some usefull information ? Thank You !