Camera Capture Issues with JetPack 6.0 on Jetson Orin Nano

Issue Overview

Users are experiencing problems with camera capture on the Jetson Orin Nano after upgrading from JetPack 5.x to JetPack 6.0. The main symptoms include:

• Incomplete images when using v4l2src or v4l2-ctl commands
• Successful image capture when using nvv4l2camerasrc
• Changes in the order of video devices (CAM0 and CAM1) between JetPack 5.x and 6.0

These issues affect the functionality of camera drivers and may impact applications relying on camera input. The problem seems to be consistent across different capture methods, suggesting a systemic change or bug in JetPack 6.0.

Possible Causes

1. JetPack 6.0 Compatibility: The upgrade to JetPack 6.0 may have introduced changes in the camera driver stack or V4L2 implementation, causing incompatibilities with existing camera drivers.

2. Kernel Differences: The kernels used in JetPack 5.x and 6.0 may employ different algorithms for listing device tree nodes, resulting in changed video device ordering.

3. Driver Bugs: There might be bugs in the camera driver implementation specific to JetPack 6.0 that affect v4l2src and v4l2-ctl functionality.

4. Configuration Mismatches: The new JetPack version might require different configuration settings for proper camera operation.

5. Hardware Abstraction Layer Changes: Modifications in the hardware abstraction layer in JetPack 6.0 could affect how the system interacts with camera hardware.

Troubleshooting Steps, Solutions & Fixes

1. Use nvv4l2camerasrc as a Temporary Workaround:

   • Replace v4l2src with nvv4l2camerasrc in your GStreamer pipelines:

     gst-launch-1.0 nvv4l2camerasrc device=/dev/video1 num-buffers=1 ! \
     "video/x-raw(memory:NVMM), format=UYVY, width=640, height=480" ! \
     nvvidconv ! jpegenc ! filesink location=image.jpg
     

2. Apply the Known Issue Patch:

   • A patch has been released to address this issue. Apply the patch from the relative topic 299235.
   • After applying the patch, v4l2src should work correctly.

3. Update Camera Driver:

   • Check for any available updates to your camera driver that are specifically compatible with JetPack 6.0.
   • Consult the camera manufacturer’s documentation for JetPack 6.0 compatibility information.

4. Modify Video Device Order:

   • To address the changed order of video devices, modify the video register API to assign device nodes explicitly instead of relying on system assignment.
   • This may require changes to your device tree or driver code.

5. Check for JetPack 6.0 Known Issues:

   • Review the JetPack 6.0 release notes and known issues documentation for any reported camera-related problems.
   • Look for any available hotfixes or workarounds provided by NVIDIA.

6. Verify Camera Compatibility:

   • Ensure that your specific camera model is fully compatible with JetPack 6.0.
   • Check if there are any firmware updates available for your camera that improve JetPack 6.0 compatibility.

7. Investigate Kernel Differences:

   • If you need to maintain the same video device ordering as in JetPack 5.x, you may need to investigate the kernel differences between the two versions.
   • Consider consulting NVIDIA developer forums or support channels for guidance on addressing kernel-level changes.

8. Revert to JetPack 5.x:

   • If the issue persists and is critical for your application, consider temporarily reverting to JetPack 5.x until a full solution is available.
   • Ensure to report the issue to NVIDIA support to help expedite a fix for JetPack 6.0.

9. Monitor for Updates:

   • Keep an eye on NVIDIA’s developer forums and JetPack release notes for any updates or patches addressing this issue.
   • Subscribe to relevant mailing lists or forums to stay informed about community-developed solutions.

By following these steps and applying the available patches, users should be able to resolve the camera capture issues on Jetson Orin Nano with JetPack 6.0. If problems persist, it’s recommended to engage with NVIDIA support or the developer community for further assistance.