its gotta be a permissions thing right ? :S. but the ONLY way it EVER runs correctly is if i open terminal, navigate to its folder and launch it manually from there. Ive tried (albeit badly) to force it run under specific users and to change its priority.
and the frame rate drops to about a quarter of the normal speed. if i autolaunch it in ANY way using the same command in either autostart or profile or bashrc etc etc it runs REALLY slowly. If i launch with python3 main.py it runs. Ok folks, i am reaching out here - as this is an ooold post - but im running opencv and realsesne on a raspberry pi 4 and using python wrappers for the coding. So for testing the auto-launch code, you don't have to reboot every time, just log out and log-in and the autostart will get executed. Tip: The autostart file runs everytime you log into pi. Save the file with Ctrl+X and Y and reboot the system with sudo reboot to check the results.
#OPEN IN TERMINAL SCRIPT ON STARTUP RASPBERRY PI CODE#
So in the code your file should be something like -profile -desktop -profile -e python3 -no-splash Mine is in desktop and the program name is test_pgm.py you can also choose between python2 or python3 here. Make sure you have used the right path and program name. When you open the file you will see the below code already in -profile -desktop -profile -no-splashĪdd -e python3 /home/pi/Desktop/test_pgm.py" this line to the file. Sudo nano /home/pi/.config/lxsession/LXDE-pi/autostart Sudo nano /etc/xdg/lxsession/LXDE-pi/autostartįor Jessie OS or below, the autostart file can be accessed with below link Modify the autostart file by following the code for Buster OS You may need to open crontab in root (add sudo before the command). We’ll be using a program called pytest.py and save it at /home/pi/Desktop/pyprog. Other methods will fail with import cv2 "no module found" error or with the failed to load X server. To use crontab with your Raspberry Pi to automate your programs, follow these steps: Write your program and note down its location. It is not possible to launch it from a text console. The best way to launch an OpenCV project is from the LXTerminal by modifying the autostart file. Note: Python OpenCv scripts with image frames can be displayed only after the GUI (Desktop) loads up. What supposedly is to be a 2 minutes job took a lot many hours so I decided to write this post as a note for future self and also to others But if you have some kind of GUI then it is not possible to launch the script directly from the boot sequence without loading the Desktop. Well! it is easy if your python code does not use OpenCV and GPIO pins. There are many ways to start a python script on boot and the processes is suppose to be very easy.
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