No sound from Audio DAC SHIM LineOut

I have an Audio DAC LineOut SHIM installed on a Raspberry Pi 3B. The output is connected to the Aux input of a hifi amplifier.

I cannot get any sound, using eg.

aplay /usr/share/sounds/alsa/Front_Center.wav

aplay -l
aplay: device_list:272: no soundcards found…

/boot/config.txt contains the following lines



Is this a hardware problem or a configuration error? What else can I do to troubleshoot it?

The following looks hopeful:

cat /proc/asound/cards
0 [sndrpihifiberry]: RPi-simple - snd_rpi_hifiberry_dac

But how to get the system to use it?

The answer is to add my user to the audio group, then logout, login.