Windows 10: Screen dimming and brightening on its own.

  1.    21 May 2018 #1

    Screen dimming and brightening on its own.


    My monitor seems to be dimming and brightening on its own. My system is a desktop with a monitor which is really a flatscreen tv.

    Everytime I close out something the screen dims. When I open up something it brightens again but it may not stay bright. When doing MS Word it will dim and brighten as I do key strokes or scrolling.

    Right now as I'm composing this thread, it is staying bright.

    I just scrolled up to the top of the screen and it dimmed (looking for post button which I now see is below and not up).
      My ComputerSystem Spec

  2.    22 May 2018 #2

    What TV do you have? Some TVs have dynamic contrast, local dimming, eco mode, or similar features that will dim the part or all of display based on ambient light and/or what is being displayed on the screen. You can try turning off these features to see if they make a difference.
      My ComputerSystem Spec

  3.    22 May 2018 #3

    I have a Hannspree M19N3.
      My ComputerSystem Spec


  4. Posts : 863
    Windows 10
       22 May 2018 #4

    Sounds very familiar, I get that irritation on my Laptop now and again. Some of this is probably also applicable to Desktops. It comes under the general banner of "Adaptive brightness and Power saving".

    1) Power Options - Power and sleep > Additional power settings > Change plan settings > Change advanced power settings.
    Scroll down the list to Display and expand that branch.
    Disable adaptive brightness.
    Make Dimmed display brightness the same as Display brightness.
    Apply > OK etc.

    2) Intel HD graphics - Right click desktop > Graphics Properties...
    Power > Plugged in > Graphics Power Plans > Maximum performance.
    Other modes may auto-dim/bright the display.
    Apply etc. You can save that Profile if you wish.

    You may have other options, but the principle is the same.

    I always have to do both to stop the irritating adaptive brightness thing.

    This is addition to similar things on a Monitor/TV.
      My ComputerSystem Spec

  5.    24 May 2018 #5

    Thanks for your input.

    I tried another monitor/tv and it did not dim/brighten randomly. So I will now focus on the hannespree.

    Thank you again.
      My ComputerSystem Spec


 

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