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I want to use this small LCD screen with the Pi for a static application to display some information:

http://www.amazon.co.uk/gp/product/B0056WJP1M/

I read in the reviews that it will switch on automatically when input is applied. Assuming it switches off when the signal is removed, this could be a way of controlling it remotely.

My question is. Is it possible to switch the RCA composite video out signal on and off via software, or is it always on?

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  • Google tvservice. tvservice -o turns video output off, tvservice -p turns it on with preferred settings. tvservice -s gives current status (on/off/configuration), tvservice -c "x y" enables composite with specified mode, tvservice -h gives a decent help. Brief Help for tvservice
    – lornix
    Commented Jul 15, 2014 at 11:01

1 Answer 1

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/opt/vc/bin/tvservice -o will Power off the display

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  • This answer got flagged as Low Quality. Personally, I think it's fine, but you might possibly want to include some explanation of the command or at least some links to more explanation, just to clarify. Commented May 16, 2014 at 22:16

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