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I'm using a Pi 3 to display content in Kiosk mode (Chromium). I've disabled the PIXEL screensaver to prevent screen blackouts during operational hours.

What I need is the display to blackout during certain times (off-hours, example: 5.30pm - 8.00am) to reduce LCD burnout.

Is there a config option or third-party tool that can help me attain this? I don't need display timeout due to inactivity - but time-based control over the display.

Thanks.

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Here is a sample cron script. It will turn the display off at 22h00, and put the display on at 6h00.

0 22 * * * /usr/bin/xset -display :0 dpms force off
0 06 * * * /usr/bin/xset -display :0 dpms force on

This script should be run by the same user running the X server, probably pi on a raspberry.

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You can also use tvservice command in a script or crontab to blackout the screen

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