Agx orin custom board no sound

Robotics & Edge Computing Jetson Systems Jetson AGX Xavier
,
1
  • Basic Info:

hardware: custom board
JetPack : 6.2
Jetson Linux : 36.4.3

connect spkeaker on HD audio header pin2 and pin9

  • Issue:

I test the DevKit sound functional work fine

so I remove the SOM from DevKit and reload to my customer board

because the sound card related hardware design is the same as DevKit

but test sound card failed

I found on the custom board the CVB can not be found, What kind of reason may lead to this issue?

root@tegra:~# amixer -c APE controls | grep CVB
root@tegra:~#