CODEWITHSUNDEEP
pythonopencvubuntu
wonderWall
wonderWall

Reputation: 3

OpenCV GUI issue in Python

I am trying trying to display webcam footage using openCV on Ubuntu but i am getting the following error:

Error: BadDrawable (invalid Pixmap or Window parameter) 9Major opcode: 62 (X_CopyArea)Resource id: 0x3800056]

Here is my full code

import cv2

cap = cv2.VideoCapture(1)
cap.set(3,320)
cap.set(4,240)
while(1):
    _, frame = cap.read()
    cv2.imshow('frame',frame)

    k = cv2.waitKey(5) & 0xFF
    if k == 27:
        break

cap.release()

cv2.destroyAllWindows()

I have tried googling the error and it seems to be GUI related. I have also read the docs on imshow and I seem to be calling it fine, can anyone figure out why I am getting this error.

Thanks

Upvotes: 0

Views: 1309

Answers (1)

AndrejH
AndrejH

Reputation: 2109

Seems like a problem when Python tries to present the window. It's probably an OS issue. Try editing the /etc/environment. 

sudo nano /etc/environment

Add this line:

QT_X11_NO_MITSHM=1

Also try running your app as sudo and checking this for any solutions if before mentioned doesn't help.

Upvotes: 1

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