For a browser-based video wall on Raspberry Pi OS using the labwc desktop, add Chromium’s kiosk command to the autostart file ~/.config/labwc/autostart. The desktop runs it after the graphical session loads. Then reboot the Pi and check that the wall appears on the physical display.
What this method starts—and what it does not
This setup automatically opens a web page in Chromium kiosk mode when the labwc desktop starts. It suits a wall that displays one browser-rendered dashboard or web application. It does not configure synchronized playback across multiple Pis, multiple independent HDMI outputs, a native video player, or a custom compositor; those require their own launch and synchronization setup.
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Raspberry Pi’s official kiosk-mode guide documents the labwc autostart approach and notes that kiosk devices may run unattended and restart frequently.
Check the Pi and desktop setup
The Raspberry Pi guide’s graphical-browser example calls for a Raspberry Pi 3 or newer with at least 1 GB of RAM and uses Raspberry Pi OS (64-bit). These are requirements for that example, not universal minimums for every video-wall application.
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Confirm that the Pi starts into the graphical labwc session and identify the user who logs in automatically. The autostart file must be in that user’s home directory. The guide also lists a suitable power supply, microSD card, display cable, and monitor as setup supplies; choose model-compatible hardware for your installation.
Add Chromium to labwc autostart
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As the user whose desktop session should show the wall, open
~/.config/labwc/autostart. Create the directory or file if it does not already exist.Rank #2
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Add a line like this, replacing the example address with the URL of your wall:
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&runs Chromium in the background so subsequent autostart commands can proceed. Raspberry Pi’s example useschromiumand kiosk mode; check the installed OS image for the actual browser command and supported options.Rank #3
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Save the file, then reboot the Pi. Confirm that Chromium opens the intended page and that it is visible on the wall’s display.
If the wall does not return after reboot
- Check the autostart user: make sure the file is under the home directory of the user who logs into the desktop automatically.
- Check the desktop session: this documented file path is for labwc. If the Pi is using a different desktop session, this method may not apply.
- Test the command in the graphical session: run the Chromium command as that user and confirm it opens the correct URL before relying on autostart.
- Check the display and power: confirm the monitor is connected and the Pi has a suitable power supply. A power or display fault is separate from the autostart configuration.
Reboot recovery is different from crash recovery
This configuration launches Chromium when the desktop starts after a reboot. It does not establish that Chromium or the wall application will restart if either crashes while the operating system remains running. Likewise, a multi-Pi wall needs separate coordination so its displays recover together; the labwc browser-kiosk instructions do not specify that behavior.
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Plan for an unattended kiosk
Automatic launch is only one part of running a display unattended. Raspberry Pi’s kiosk guide discusses keeping software updated, protecting physical access, using SSH key authentication for remote access, and optionally using a read-only overlay filesystem. If you manage the Pi remotely, the guide describes enabling SSH during OS customization and connecting with the configured hostname; if hostname access fails, try the Pi’s IP address.
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