Intel NUC Audio Issue with HDMI 2.0


For the past week, I’ve been working with the balenaOS & creating a kiosk application using this template . The kiosk application has media content like videos & images which it plays at certain intervals.

When the NUC with the application installed on it is connected to an external monitor with HDMI 2.0 cable, the video plays fine but there is no audio.

Upon doing a
cat /proc/asound/cards
on the main & host terminal, I don’t see an HDMI card.

Any help on this matter will be appreciated!

Hi there,

This might be caused due to missing drivers, for example. Can you use audio through the analog jack? What base image are you using?

I’m using
balenalib/%%BALENA_MACHINE_NAME%%-node in the DockerFile which equates to


for a NUC.

All the USBs are disabled, I haven’t tried using the audio jack but will try it & update.