Here are two techniques to disable the blank screen on the Raspberry Pi. By default the screen is blanked after around 10/15 minutes if no user input (mouse or keyboard) is detected.
How to Disable the Blank Screen on Raspberry Pi (Raspbian)

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Here are two techniques to disable the blank screen on the Raspberry Pi. By default the screen is blanked after around 10/15 minutes if no user input (mouse or keyboard) is detected.