this post was submitted on 05 Jul 2023
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Steam Deck

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  • Does the Steam Deck use PWM for the screen? Does the screen flicker?
  • While gaming, is there some kind of screen tearing or is there some kind of VRR/Freesync being used? Otherwise, what settings do you use to avoid screen tearing (FPS locking, etc.)?

Thanks!

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[–] cianmor 1 points 1 year ago

Exactly, thank you for the explanation. PWM is used for brightness control and it may flicker, especially when the display is not set at 100%. This does not occur if the screen uses DC voltage to control the brightness.

As far as I have read the Steam Deck unfortunately uses PWM. The question is if it is flicker-free at 100% brightness - could somebody check it with their phone set to record a video at 120fps/240fps or more? You should see it flicker on the screen if the flicker is below those fps/Hz values.