Continuing the discussion from [How to set HDMI audio volume through alsamixer?](How to set HDMI audio volume through alsamixer?
Hi,@kayccc, I had a similar problem, can you give me some advice?And I created a new thread.
https://forums.developer.nvidia.com/t/jetson-xavier-nx-sound-card-tegrahdaxnx-volume-control/228737
Best wishes!