(Invalid card number.

[Tim Curtis]

Sounds like a hardware issue.

To troubleshoot

- set I2s audio device to "IQaudIO Pi-DAC+" in Audio config
- power off
- swap back to the Pi-DAC+ card
- power up
- Open MPD config and SAVE
- verify that this configuration is working properly

then

- set I2s audio device to "IQaudIO Pi-DAC PRO" in Audio config
- power off
- swap back to the Pi-DAC PRO card
- power up

- post the output from the following commands

Code:

cat /boot/config.txt
cat /boot/cmdline.txt
sudo /var/www/command/sysinfo.sh