OrbbecSDK_ROS2/docs/en/source/8_FAQ/FAQ.md

Frequently Asked Questions

Unexpected Crash

If the camera node crashes unexpectedly, it will generate a crash log in the current running directory: Log/camera_crash_stack_trace_xx.log. Please send this log to the support team or submit it to a GitHub issue for further assistance.

No Data Stream from Multiple Cameras

Insufficient Power Supply:

• Ensure that each camera is connected to a separate hub.
• Use a powered hub to provide sufficient power to each camera.

High Resolution:

• Try lowering the resolution to resolve data stream issues.

Increase usbfs_memory_mb Value:

• Increase the usbfs_memory_mb value to 128MB (this is a reference value and can be adjusted based on your system’s needs) by running the following command:

    echo 128 | sudo tee /sys/module/usbcore/parameters/usbfs_memory_mb

• To make this change permanent, check this link.

Additional Troubleshooting

• If you encounter other issues, set the log_level parameter to debug. This will generate an SDK log file in the running directory: Log/OrbbecSDK.log.txt. Please provide this file to the support team for further assistance.
• If firmware logs are required, set enable_heartbeat to true to activate this feature.

Why Are There So Many Launch Files?

• Different cameras have varying default resolutions and image formats.
• To simplify usage, each camera has its own launch file.