I have a rpi3 running volumio version 0.928.
I have a Chinese made generic SA7023 based USB DAC. It’s got its own power. I think it is detected.
% dmesg
[ 345.073231] usb 1-1.2: new full-speed USB device number 4 using dwc_otg
[ 345.246276] usb 1-1.2: config 1 has an invalid interface number: 3 but max is 2
[ 345.268550] usb 1-1.2: config 1 has an invalid interface number: 3 but max is 2
[ 345.290807] usb 1-1.2: config 1 has an invalid interface number: 3 but max is 2
[ 345.313075] usb 1-1.2: config 1 has an invalid interface number: 3 but max is 2
[ 345.335329] usb 1-1.2: config 1 has no interface number 2
[ 345.373163] usb 1-1.2: New USB device found, idVendor=262a, idProduct=1250
[ 345.394103] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 345.416355] usb 1-1.2: Product: SA9023 USB Audio
[ 345.430408] usb 1-1.2: Manufacturer: TRASAM USB 96KHz/24bit
[ 345.468367] input: TRASAM USB 96KHz/24bit SA9023 USB Audio as /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.0/0003:262A:1250.0001/input/input0
[ 345.510773] hid-generic 0003:262A:1250.0001: input,hidraw0: USB HID v1.00 Device [TRASAM USB 96KHz/24bit SA9023 USB Audio] on usb-3f980000.usb-1.2/input0
[ 345.619390] snd_usb_audio: unknown parameter 'nrpacks' ignored
[ 345.637185] snd_usb_audio: unknown parameter 'nrpacks' ignored
[ 345.685227] usbcore: registered new interface driver snd-usb-audio
volumio@volumio:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: ALSA [bcm2835 ALSA], device 0: bcm2835 ALSA [bcm2835 ALSA]
Subdevices: 8/8
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
Subdevice #4: subdevice #4
Subdevice #5: subdevice #5
Subdevice #6: subdevice #6
Subdevice #7: subdevice #7
card 0: ALSA [bcm2835 ALSA], device 1: bcm2835 ALSA [bcm2835 IEC958/HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 5: Audio [SA9023 USB Audio], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 5: Audio [SA9023 USB Audio], device 1: USB Audio [USB Audio #1]
Subdevices: 1/1
Subdevice #0: subdevice #0
volumio@volumio:~$ cat /etc/mpd.conf
...
# Volumio MPD Configuration File
audio_output {
type "alsa"
name "alsa"
device "hw:5,0"
}
...
The problem is there is no sound playing any songs in a Spotify playlist or any CIFS/SMB mounted *.m4a files (from iTunes). However, I can hear the startup sound when Volumio boots.
How can I debug the problem?