my brightness bottom is seen but not working properly this issue was also seen peviously but one my friend solved it but know i dont know what to do

apo thecary 0 Reputation points
2026-08-15T16:30:09+00:00

my brightness bottom is seen but not working properly this issue was also seen peviously but one my friend solved it but know i dont know what to do

Windows for home | Windows 11 | Display and graphics

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  1. Kai-H 25,260 Reputation points Microsoft External Staff Moderator
    2026-08-19T10:57:31.67+00:00

    Hi, apo thecary

    Since the brightness slider is visible but has no effect, Windows may not be communicating correctly with the built-in screen. This can involve the monitor device, HDR settings, or the laptop’s firmware controls.

    Besides the solutions provided by the Q&A Assist, here are some suggestions you can try:

    Open Device Manager, expand Monitors, and check whether Generic PnP Monitor is disabled. If you see a small down-arrow, right-click it and select Enable device, then restart the computer. An incorrectly detected or disabled monitor can prevent brightness control.

    Perform a full power reset. Shut down the laptop, unplug the charger and other connected devices, then hold the power button for about 20 seconds. Reconnect the charger and start it again. This may reset the hardware controller that manages the screen backlight.

    Temporarily turn off HDR under Settings > System > Display > HDR, if that option appears, then test the brightness slider again. HDR uses separate display processing and brightness behavior.

    Visit the laptop manufacturer’s support page and install any available BIOS, firmware, chipset, or hotkey utility updates for the exact model.

    If it still does not work, please provide the laptop make/model, Windows version from winver, and what appears under Device Manager > Monitors.

    Thank you for your patience in reading, I hope this information has been helpful to you. 

    If the answer is helpful, please click "Yes" and kindly upvote it. If you have extra questions about this answer, please click "Comment."    

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  2. AI answer

    2026-08-15T16:30:25.6533333+00:00

    Try these steps in order:

    1. Use the built-in brightness controls:
      • Select Action center / Quick Settings on the right side of the taskbar and move the Brightness slider.
      • Or go to Settings > System > Display and adjust the brightness there.
    2. If the slider is visible but does not actually change brightness, update the display driver:
      • In the taskbar search box, type Device Manager and open it.
      • Expand Display adapters.
      • Right-click the display adapter and select Update driver.
      • Follow the prompts, then restart the PC.
    3. If Microsoft Basic Display Adapter appears under Display adapters, install the proper graphics driver from the laptop manufacturer’s support site, then restart. That adapter usually means the correct graphics driver is missing or corrupted.
    4. Check for optional driver updates:
      • Go to Settings > Windows Update > Advanced options > Optional updates.
      • Install any available display driver updates, then restart.
    5. If the problem started after a recent update, try rolling back or reinstalling the graphics driver:
      • Open Device Manager > Display adapters.
      • Right-click the graphics card and choose Properties > Driver > Roll Back if available.
      • If that does not help, use Update driver or reinstall the manufacturer-recommended graphics driver.
    6. If this is a laptop with a built-in display, make sure it is not an external-monitor limitation. On desktop PCs with external monitors, brightness is often changed using the monitor’s own buttons instead of Windows.
    7. If automatic brightness is involved, go to Settings > System > Display and check whether brightness is changing automatically based on lighting or content. On some Windows 11 devices, changing the brightness once manually can restore auto-brightness behavior.

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

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