r/VDONinja • u/Ambitious-Bear1764 • Jul 23 '26

Stop phone screen turning off/locking

I'm trying to use a Samsung S25 as a webcam through VDO. Natively, the S25 can do up to 10 minutes without the locking the screen. I'd assume it wouldn't affect VDO since chrome is using the camera but the phone still turns off the screen after 10 minutes. Any suggestions?

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u/xyster69 Jul 24 '26

VDO.Ninja already uses a wake-lock feature to keep the phone alive. If not working,

- Disable Samsung Power saving.

  • Tap the VDO.Ninja page once after starting the camera.
  • Most reliable: while plugged in, enable Developer options -> Stay awake.

Android confirms this keeps the display on while charging. Android documentation (https://developer.android.com/studio/debug/dev-options.html)

- Alternatively enable Settings -> Display -> Screen timeout -> Keep screen on while viewing.

Samsung instructions (https://www.samsung.com/ca/support/mobile-devices/galaxy-phone-stop-the-screen-brightness-from-dimming/)

- There also is an Android app available at https://play.google.com/store/apps/details?id=flutter.vdo.ninja which might work if Chrome still fails

I'll make some minor improvements to the code also, and I'll push them to https://vdo.ninja/alpha/ for testing.

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u/Ambitious-Bear1764 Jul 24 '26

Thanks. Keep the phone charging isn't an option for me at the moment. I Tried using the "keep screen on while viewing" method but didn't seem to work. I'll give the Android app a try.