Jack state detection stuck after suspend

Robotics & Edge Computing Jetson Systems Jetson Thor
1

Hi NVIDIA,

I am using JetPack 7.1 on the Jetson AGX Thor Developer Kit and encountering a persistent issue where audio jack detection stops working after the system resumes from sleep.

How to Reproduce:

  1. Open a terminal and run the following command to monitor the state in real-time: watch -n 0.2 -d "amixer -c APE cget name='CVB-RT Jack-state'"
  2. Verify initial functionality:
  • Physically plug in the audio jack. (Observe watch output changes to values=1)
  • Physically unplug the audio jack. (Observe watch output changes to values=0)
  • Confirming that the driver and hardware are working correctly before suspend.
  1. Execute the suspend command: sudo systemctl suspend
  2. Wake the AGX Thor DevKit back to its normal operating state.
  3. Re-test functionality:
  • Action: Physically plug/unplug the audio jack again.
  • Actual Result: The watch output remains static (stuck at its last state). The system no longer responds to the jack’s physical status change.

Looking forward to your technical support.

4

We have not been able to reproduce this: after suspend, jack detection updates correctly on our side. To narrow it down, can you describe how audio is wired on your system

5

Thank you for the update. To narrow down the issue, here are the details of my hardware wiring:

1. Hardware Connection Details:

6

Since you are using a 4-pin (TRRS) headset, please test with a 3 pin connector using separate jacks for playback and mic? For our internal testing—we used a C-Zone 3.5" Floppy HD Audio Front Panel Adapter