trying to get a light DAC running on a Pi4 following this kb article, https://support.hifiberry.com/hc/en-us/articles/205377202-Adding-software-volume-control . There's no sound at the outputs. Cables are ok, amp input(s) also.
~$ speaker-test -D hifiberry -c 2 looks working as well as ~$ play -n synth sine 1000. Alsamixer shows a setting of 95%. No sound.
~ $ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: sndrpihifiberry [snd_rpi_hifiberry_dac], device 0: HifiBerry DAC HiFi pcm5102a-hifi-0 
Subdevice #0: subdevice #0
~ $ dmesg | grep snd
[ 5.677996] snd-rpi-simple soc:sound: ASoC: CODEC DAI pcm5102a-hifi not registered - will retry
[ 5.684911] snd-rpi-simple soc:sound: pcm5102a-hifi <-> fe203000.i2s mapping ok
Any idea what's wrong here? asound.conf copied from the kb article.