imshow not working

[carolineys]

When I ran python lerobot/scripts/control_robot.py --robot.type=koch --control.type=teleoperate, the program hangs at (also no image display pop up) the imshow line in ./lerobot/common/robot_devices/control_utils.py

    if display_cameras and not is_headless():
        image_keys = [key for key in observation if "image" in key]
        for key in image_keys:
            cv2.imshow(key, cv2.cvtColor(observation[key].numpy(), cv2.COLOR_RGB2BGR))
        cv2.waitKey(1)

I am using ubuntu 22 and have opencv-python==4.10.0.84 installed.

[liyitenga]

Have you tried executing this command?

pip uninstall -y opencv-python
conda install -y -c conda-forge "opencv>=4.10.0"

[carolineys]

I just figured it out. I originally used a Python virtual environment, and when I reinstalled everything with conda, it worked!