Touch screen after few minutes is black - Volumio dimmer?

Hi,

My touch screen (waveshare 7") automatically switch off by Volumio. Monitor is ON, but screen is black - I have to touch it to run it again.

Is there any dimmer functionality or something I can not find?

Please help.

maybe this also works for you.

preventing-blank-screen-screen-saver-t10509.html

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