Brightness Setting Not Working

Recently I upgraded three different Dell laptops to Windows 10. The first was a Dell Inspiron 11 2-in-1, the 2nd was a Dell Latitude E5450, and the 3rd was a Dell XPS 13 (2015 Infinity Display). While I love Windows 10 so far, there is one major annoyance: brightness adjustment no longer works! i.e. when you press Function Key + Brightness Up/Down, the onscreen brightness meter pops up but the actual brightness adjustment does not work 🙁

Mar 11, 2021 In general, that your brightness control not working issue is due to the display driver. Here are two solutions you can try: Update your display driver Use the Microsoft Basic Display Adapter software. Brightness control not working in Windows 10 – ThinkPad X1 Yoga, X1 Carbon (Type 20FB, 20FC) SHOP SUPPORT.

While I love Windows 10 so far, there is one major annoyance: brightness adjustment no longer works! When you press Function Key + Brightness Up/Down, the onscreen brightness meter pops up but the actual brightness adjustment does not work 🙁.
SOLVED: Brightness Settings Not Working in Windows 10 Microsoft is urging its user to upgrade, and as a result, more and more Windows users are upgrading to Windows 10. However, upgrading or installing a new operating system may cause many unexpected issues. Unable to change the brightness after an update to Windows 10 is a common issue.

Thankfully, after some experimentation I finally resolved the issue 🙂 Here is how to fix the brightness adjustment on Dell laptop’s running Windows 10:
#1 Go to Device Mananger
#2 Open Display Adapters
#3 Right click on each Display adapter and choose “Update Driver”
Let windows do it’s thing (which may take a while since the driver will need to be downloaded).

After that, voila you should have your brightness adjustment back! 🙂

This is current info as of August 6th, 2015. Dell laptops mentioned above. All latest Windows 10 updates installed.

A number of users report after the recent windows 10 upgrade (May 2020 update ) Windows won’t let to adjust brightness on the laptop. If you are also experiencing a Windows 10 brightness control “not working” issue. This problem in the relevant drivers doesn’t allow you to adjust your display brightness. Again sometimes incorrect power configuration, third-party application, Windows update bug cause “windows 10 brightness not working“. whatever the reason here some quick solutions you may apply to fix the problems that prevent changing the brightness of the screen in Windows 10.

After the recent upgrades to Windows 10 version 2004, my Dell Laptop brightness is off the charts. I can find no way to adjust it. The function buttons no longer work. Under settings, the display setting provides no adjustment for brightness.

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1 Windows 10 brightness not working

Windows 10 brightness not working

If the problem started after install windows 10 version 2004, them make sure you have installed the latest Cumulative Update, As Microsoft mention: “Addresses an issue with the brightness controls on some laptops after updating to the Windows 10 May 2020 Update. ”

You Can check And install latest updates from Settings ( Windows + I ) -> Update & Security -> windows update -> And check for updates. Restart windows and check This will fix “can’t adjust brightness ” bug.

Change brightness settings

Go into “Control Panel” and then “Power Options” Or Right-click on the Power icon on the taskbar and select Power Options.
Click the “Change plan settings” link next to whichever plan you are currently using and then click “Change advanced power settings“.
In this new window click “Display” to open up the listings under it.
Now locate and click each of the following…” Display brightness”, “Dimmed display brightness” and”Enable adaptive brightness”.

Change each of these to the settings you wish, then click the “Apply” button and finally the “OK” button. That’s all, restart your system and check on next login windows allows adjusting screen brightness.

Note: some users report Turnoff Adaptive brightness option from power options, allows them to customize the screen brightness. you can also try this “Turnoff Adaptive brightness ” and check it may help you.

Reinstall the display driver

As discussed this is a graphics driver related issue, and Reinstalling the display ( Graphics ) driver is the ultimate solution to fix screen brightness not working/increasing issue. First Go to the manufacturer’s website according to your PC GPU ie, Intel, Nvidia, or AMD. And download and save the graphics driver by selecting your GPU model and OS architecture 32/64 bit.

Now Press Windows + R, type devmgmt.msc and ok to open the device manager.
Here expand display driver, right click on installed graphics driver and select uninstall.
Click ok When asking for confirmation and restart windows to completely uninstall the display driver.

After that on next login install the latest graphics driver which previously downloaded from device manufacturer website. Again restart windows and check this time you can adjust screen brightness.

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Also, Update Generic PnP Monitor Driver from Device Manager -> Expand Monitors and then right-click on Generic PnP Monitor and select Update Driver. Select Browse my computer for driver software. Click on Let me pick from a list of device drivers on my computer option at the bottom. Now select Generic PnP Monitor and click Next. After performing this action restart your system and check it helps to fix “can’t adjust brightness windows 10”

Did these steps help to fix windows 10 brightness not working or can’t adjust the screen brightness problem? Let us know which option worked for you.