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


Related Threads
Automatic screen dimming. in Graphic Cards
This annoys me for some time now. And I tried everything I can, but can't seem to fix it. I reinstalled windows several times (actually, seven times), trying to get an update to not install, but it still got installed. So basically, what's...
Basically, whenever i am in a game, my screen automatically dims, i would say to about 60-70% brightness. The only way to increase the brightness again is to tab out. I had actually somehow managed to fix this problem, but it began again after i...
When I boot into Windows 10 Education the screen dims to about 60%. It's happening on the two computers now that have Education version installed on them. Screen brightness is set to 100% under both battery and plugged in power settings. ...
Weird screen dimming issue. in General Support
For the last few weeks I've had this bizarre issue where my screen will randomly dim. I can't click on anything when this happens.. The only way to fix it, is to either restart my computer or re-log. Any suggestions?
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 08:01.
Find Us