Скачать или смотреть Autostart Your Kivy GUI on a Raspberry Pi

Discover how to automatically launch a Kivy GUI on your Raspberry Pi, even in a headless configuration, with our easy step-by-step solution.
---
This video is based on the question https://stackoverflow.com/q/74546028/ asked by the user 'mlx11' ( https://stackoverflow.com/u/7977305/ ) and on the answer https://stackoverflow.com/a/74553423/ provided by the user 'Mark' ( https://stackoverflow.com/u/2397865/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Autostart a kivy gui on a raspberry pi

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Autostart Your Kivy GUI on a Raspberry Pi: A Comprehensive Guide

If you're looking to create an engaging Kivy GUI application that launches automatically upon booting a Raspberry Pi, you're in the right place! In this guide, we will explore a common problem faced by many Raspberry Pi users working with headless setups: having their Kivy GUI not display as intended after a reboot. By following this guide, you'll learn the steps to troubleshoot the issue effectively and ensure your application runs smooth as butter from startup.

Understanding the Problem

A user faced the challenge of getting a Kivy-based graphical user interface (GUI) to launch automatically on a Raspberry Pi 4 running headless Raspbian, which is seen often in projects where a monitor is not continuously used. Here are key points of the user's experience:

The Kivy application runs fine when executed directly from the command line.

It also executes successfully when manually running the /etc/rc.local file.

However, upon reboot, the GUI fails to start, indicating a potential issue with the boot-up sequence and the pre-requisite services not being fully operational when the script runs.

Exploring the Solution

To address this issue, we can revise the approach by utilizing the .bashrc file located in the user's home directory. The .bashrc allows users to customize terminal sessions, making it an ideal place to manage startup applications while ensuring a smooth operation.

Step-by-Step Breakdown

Edit Your .bashrc File
Open your terminal and type the following command to edit your .bashrc file:

[[See Video to Reveal this Text or Code Snippet]]

Add the Startup Logic
At the end of the .bashrc file, add the following script. This script checks if the session is remote (via SSH) and only starts the Kivy GUI if it's a direct console session:

[[See Video to Reveal this Text or Code Snippet]]

Create Your Kivy Startup Script
You can encapsulate the command to start your Kivy GUI into a separate shell script (my_fun in this case). This makes it modular and easier to maintain:

[[See Video to Reveal this Text or Code Snippet]]

Confirm Executable Permissions
Don’t forget to make your startup script executable:

[[See Video to Reveal this Text or Code Snippet]]

Reboot Your Raspberry Pi
Finally, reboot your Raspberry Pi and observe if the Kivy interface launches automatically upon startup:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

With these steps, you should be able to successfully autostart your Kivy GUI on a Raspberry Pi running headless Raspbian. The key takeaway is using the .bashrc file effectively as a management tool for session-based application startup. Whether you're developing IoT projects or digital dashboards, this setup ensures your Kivy application is ready and functional from the moment your Raspberry Pi powers on.

If you encounter any issues, don't hesitate to double-check your script paths and the execution permissions. Happy coding, and enjoy your seamless GUI experience!