Hello everyone,
I am facing an issue with my camera on the Jetson TX2, and I hope someone here can assist me. My goal is to use the camera in a Python script with OpenCV, but so far, I haven’t been able to get it working.
Setup:
- Board: NVIDIA Jetson TX2
- Camera: MIPI-CSI camera (ov5693)
- OS: Ubuntu 18.04 with NVIDIA JetPack 4.x
- Python Version: 3.9 (via Conda environment)
- OpenCV Version: 4.5.5 (headless, installed via pip)
- The camera is visible under
/dev/video0
.
Problem Description:
- When trying to open the camera in my Python script, I get the error:
bash:
Error: Camera could not be opened.
2.Relevant code snippet*:
python
CopyEdit
pipeline = (
"nvarguscamerasrc ! video/x-raw(memory:NVMM), width=1280, height=720, format=NV12, framerate=30/1 ! "
"nvvidconv flip-method=2 ! video/x-raw, format=BGRx ! videoconvert ! appsink"
)
cap = cv2.VideoCapture(pipeline, cv2.CAP_GSTREAMER)
if not cap.isOpened():
print("Error: Camera could not be opened.")
return
- When testing the camera with Cheese, it returns:
Error during camera setup: No device found
- Running v4l2-ctl --list-devices outputs:
vi-output, ov5693 2-0036 (platform:15700000.vi:2):
/dev/video0
- When using guvcview, it shows:
V4L2_CORE: Error opening device /dev/video0: video capture not supported.
Steps I’ve Tried:
- Updated drivers with
sudo apt-get install nvidia-l4t-graphics
. - Checked the camera with
v4l2-ctl --list-formats
(no errors). - Tested with the GStreamer pipeline (see code above).
- Ensured user permissions are set (added the user to the
video
group). - Verified that no other application is blocking the camera.
Questions:
- Are there known issues with the ov5693 camera on the Jetson TX2?
- Do I need additional drivers or special GStreamer settings for this camera?
- How can I ensure that
/dev/video0
is working correctly in V4L2 mode? - Are there specific debugging tools or logs I can use to identify the root cause?
Any help or suggestions would be greatly appreciated. Thanks in advance for your support! 🙏