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I am running a raspberry pi3b+ via ssh. There is a hyperpixel4 screen by Pimoroni attached to the Pi and it's working fine. I am trying to display an image on the screen attached to the Pi with a python script via SSH.

I tried PIL and Pygame, but none works.

from PIL import Image
img = Image.open("image.jpg")
img.show()


import pygame #voor beeld en geluid
from time import sleep
from pygame.locals import *
pygame.init()
WIDTH = 1280
HEIGHT = 800
windowSurface = pygame.display.set_mode((WIDTH, HEIGHT), 0, 0)
img = pygame.image.load("ndvi.jpg")
windowSurface.blit(img, (0, 0))
pygame.display.flip()

With PIL, nothing happens at all. Even if I don't use SSH and type directly into the Pi's terminal. Pygame works if I type directly into the Pi (with a delay, but that can be solved with subprocess maybe). But it shows this error via ssh-"Unable to open a console terminal".

Thanks

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  • Does the image is shown if you are direct logged in to the RasPi using an attached keyboard? – Ingo May 22 '20 at 8:33
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Before you run your python script, run this: 

export DISPLAY=:0.0

Then it should work as expected.

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  • Thanks. It wakes up the display in case it has turned off due to inactivity. But it doesn't show the image. – Dhruv Jul 26 '19 at 9:39
  • What if you do export DISPLAY=:0.0 ? – rm-vanda Jul 26 '19 at 20:50

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