Windows 10: Cant change the screen brightness and connect to second screen

Discus and support Cant change the screen brightness and connect to second screen in Windows 10 Software and Apps to solve the problem; After I made a windows update I cant change screen brightness using f10 and f11 keys on my laptop keyboard, I also cant connect with second screen when... Discussion in 'Windows 10 Software and Apps' started by HRproYT, Dec 23, 2023.

  1. HRPROYT
    HRproYT Win User

    Cant change the screen brightness and connect to second screen


    After I made a windows update I cant change screen brightness using f10 and f11 keys on my laptop keyboard, I also cant connect with second screen when I connect a hdmi cable it seems to not detect second screen this is not a problem with cable because I tested it with my brother's laptop I made a system restore 2 times and it not fixed the problem I think it maybe a virus so I made a offline scan and in not detected anything and also not fix the problem. Can someone HELP?

    :)
     
    HRproYT, Dec 23, 2023
    #1
  2. GERARD QUI
    Gerard Qui Win User

    screen brightness on windows 10

    Hi,

    Some computers can let Windows automatically adjust screen brightness based on the current lighting conditions.

    To manually adjust the screen brightness, we suggest following these troubleshooting steps:

    • Click Start, then select Settings.
    • Choose System, then select Display.
    • Under Brightness and color, move the Change brightness slider to adjust the brightness.

    Feel free to post back if you have other concern.
     
    Gerard Qui, Dec 23, 2023
    #2
  3. ICG01
    ICG01 Win User
    Change screen brightness

    My laptop screen is dull. Need to make it brighter. However the suggestion --> Start - Settings - System - Brightness and color

    does not work. It is already set to max. brightness but there is no reaction. Screen remains dull. By the way there is no change if I move slide to minimum brightness, it would not change brightness level at all. Any suggestion?
     
    ICG01, Dec 23, 2023
    #3
  4. FROSTYTIGERXP
    FrostyTigerXP Win User

    Cant change the screen brightness and connect to second screen

    Unable to Change Screen Brightness of Laptop


    So I'm not sure how long this has been happening but for some reason, I can't change the brightness on my laptop screen. I have linked a picture and as you can see, my brightness says 0% and that I can't change it, however my actual brightness is at 100%. I have looked around everywhere and the only responses I have found don't work for me. Here's a list of everything I have tried:
    - Reinstalling Display Drivers
    - Rolling Back Display Drivers
    - Reset Settings on UWT4
    - Power and Battery Settings
    (UWT4 or Ultimate Windows Tweaker 4 is a customizer for Windows 10 and I thought that might be the problem but it wasn't)

    If anyone has any suggestions on how to fix this, it's greatly appreciated! Thanks! -
     
    FrostyTigerXP, Dec 23, 2023
    #4
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Cant change the screen brightness and connect to second screen

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