Summary :
Unable to adjust screen brightness in windows 10? OR screen brightness automatically getting reduced and increased? You can fix these two problems easily. Jul 27, 2020 Ever since the Windows 10 OS featured a free upgrade, users have even experienced the problem ‘ Windows 10 brightness not working ‘, where their laptop resists changing the brightness. Because of this weird bug, it becomes difficult for users to decrease or increase the levels of brightness on their laptops running on Windows 10. Dec 20, 2017 How to solve If brightness not working in Windows 8, 10 HP Step 1: Press Windows button and R (Window + R) simultaneously then a RUN window will open and type Control and press OK button. After click on the OK button new window will open of the control panel. Drag the slider bar to adjust the screen brightness. The slider bar that says 'Change brightness' is at the top of the display settings. Drag the slider bar to the left to lower the screen brightness. Drag it to the right to increase the screen brightness. Use a lower screen brightness to conserve power/battery life. Another way to fix the Windows 10 screen brightness control problem is to reinstall the display adapter driver. Go to Device Manager and find 'Display adapters', expand it, right-click the graphics device and select 'Uninstall' from the drop-down menu to uninstall it. In the popped-up window, click 'Uninstall'.
Although Windows 10 is a stable operating system in performance, some issues may also happen in some cases and you need to troubleshoot it. Today in MiniTool’s post, we will show you how to fix the issue of laptop brightness not changing.
Laptop Brightness Not Changing
Adjusting the brightness of your device is an easy task you may perform every day. You can increase the brightness by day to make it easy to see the contents on the screen. Likewise, you can lower the brightness to adapt the light at night to let eyes rest.
However, some users reported that they couldn’t adjust the screen brightness. The brightness always keeps maximum, regardless of the power plan.
This issue may not impact your desktop since you can change the brightness via adjusting the monitor. But for some laptops, it is frustrating if Windows 10 can’t change brightness. Since the laptop is constantly running with the maximum brightness, the battery life may be affected.
Fortunately, you can easily fix this issue and we will introduce some methods to you in the following part. Let’s go to see how to troubleshoot it.
Tip: Is screen brightness not working? This related article - Top 5 Solutions to Windows 10 Brightness Not Working is helpful.
Fix: Can’t Adjust Brightness Windows 10
Adjust the Brightness from Power Options
To fix the issue of laptop brightness not changing, you can tweak some power options settings. It is also useful if you encounter the problem in Windows 7 and 8.
See what you should do:
Step 1: Open Control Panel in Windows 10 and view all the items by Category.
Step 2: Navigate to Hardware and Sound > Power Options.
Opera for mac os x 10.5 8download for mac os x 10 5 8. Step 3: Click the Change plan link next to your selected plan.
Step 4: Click Change advanced power settings.
Step 5: Scroll down to find Display and expand the drop-down menu.
Step 6: Expand Display brightness and adjust the value, do the same for the Dimmed display brightness menu, and make sure Enable adaptive brightness is Off.
Step 7: Click the Apply button and the screen brightness will be changed to the values you set.
Adjust Brightness from the Graphics Properties Menu
If your laptop brightness won’t change, you can adjust it via the Graphics Properties menu. This menu is decided by your graphics card driver and it may be different based on the version you have.
The following steps are for the Intel graphics card.
Step 1: Right-click the empty space on the desktop and choose Graphics Properties.
Step 2: Click Display > Color Settings.
Step 3: Move the Brightness slider to adjust the brightness. Then, click Apply.
Update Your Graphics Card Driver
If the above ways fail to fix laptop brightness not changing, the issue may be related to your graphics card driver. Updating the driver will be helpful.
Step 1: Go to Device Manager, expand Display drivers, and right-click your driver to choose Update driver.
Step 2: Click Search automatically for updated driver software and then follow the wizards on the screen to finish the update.
Alternatively, you can check what graphics card you have, go to the manufacturer’s website, download, and install a new version for your graphics card driver.
Re-enable your PnP Monitor
When encountering the issue of laptop brightness not changing, perhaps the PnP monitor is disabled due to some driver or system updates, preventing you from adjusting the screen brightness. To fix this issue, re-enable your PnP monitor if you are using it.
Step 1: Also open Device Manager via the Start menu.
Step 2: Right-click the PnP monitor and choose Enable device.
Fix Catalyst bug via Registry Editor (ATI GPUs)
![Brightness Not Changing Windows 10 Brightness Not Changing Windows 10](https://www.intowindows.com/wp-content/uploads/2016/09/adjust-screen-brightness-in-Windows-10-pic2_thumb.png)
If you are an ATI user and have installed Catalyst (especially version 15.7.1), you may encounter the issue - Windows 10 can’t change brightness. You can follow these steps to fix the issue:
Step 1: Type regedit to the search box and click the result to run Registry Editor.
Step 2: Go to HKEY_LOCAL_MACHINE SYSTEM ControlSet001 ControlClass {4d36e968-e325-11ce-bfc1-08002be10318} 0000.
Step 3: Double-click MD_EnableBrightnesslf2 and change its value to 0. Do the same for KMD_EnableBrightnessInterface2.
Step 4: Go to HKEY_LOCAL_MACHINE SYSTEM CurrentControlSet Control Class {4d36e968-e325-11ce-bfc1-08002be10318} 0001.
Step 5: Respectively double-click MD_EnableBrightnesslf2 and KMD_EnableBrightnessInterface2, and then change the value to 0.
Why My Laptop Brightness Is Not Changing Windows 10
Step 6: Exit Registry Editor and restart the PC. Then, the issue of laptop brightness not changing should be resolved.
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A good choice to avoid eye strain is to adjust screen brightness. How to change brightness on Windows 10? Cutentr osx 0.3.2 a native ntr streaming client for mac free. Multiple methods are offered in this post.
Final Words
Is your laptop brightness not changing in Windows 10? These five methods are effective for you to easily get rid of the trouble and you can have a try now.
Ability to adjust your laptop’s display brightness can make looking at the screen more comfortable and less eye-straining. Also, reducing the brightness can increase the battery life of a notebook. In this post we will explain how you can change the display brightness on a Windows 10-based laptop.
You can do it using the Windows Action Center, Display section in Windows Settings, Windows Mobility Center, or via brightness hotkeys on your notebook’s keyboard.
Change Display Brightness Using Windows Action Center
To open the Windows Action Center pane, click on the speech balloon-like icon on the taskbar, in the extreme lower right corner of the screen. Or, press the Windows key + A key on the notebook keyboard simultaneously. One of the rectangular tiles in the Action Center has a sun-like icon on it. That’s the brightness adjustment tile / button. Click on it one or several times to adjust the brightness at your desired level (0, 25, 50, 75, or 100 percent).
Note: If the brightness tile is not visible on the Action Center pane, click on the Expand button located above the tiles which are visible.
Adjust Brightness in Display Section of Windows Settings
If you want to fine-tune the brightness instead of using 25% increments, right-click on the same brightness tile in the Action Center, click on the Go to Settings button and adjust brightness using the slider on the Display settings section that will show up (Windows Settings / System / Display). You can also reach the same section and slider by typing brightness (or display) in the Windows Search box in the lower left corner of the screen and then clicking on the relevant search result. Or, you can open Windows Settings (Windows key + I key on the keyboard) and click on the System item.
Laptop Screen Brightness Not Changing Windows 10
Adjust Brightness Using Windows Mobility Center
The same brightness level settings function can be found in the old Windows Mobility Center. Right-click on the battery icon on the taskbar, in the lower left corner of the screen, and click on the Windows Mobility Center. There you can find an old-school Windows 7-style brightness intensity slider.
Brightness Settings Not Changing Windows 10
Increase / Decrease Screen Brightness Using Keyboard Hotkeys
The most of modern laptops feature a pair of keyboard keys for increasing and decreasing screen brightness. These “hotkeys” are usually in the top row of the keyboard, on the traditional function keys (F1, F2, F3…). They are marked with sun-like signs. Depending on the keyboard settings, using the brightness hotkeys may require pressing the keyboard’s FN function button and brightness + or – keys simultaneously. Every time you hit a brightness hotkey, a slider will pop up in the upper left corner of the screen to show you percentage of the current brightness level. You can also adjust the brightness using the mouse pointer and the same slider.
Notes Related to Windows 10 Brightness Settings
It’s worth noting that screen brightness levels of a Windows 10 laptop on battery and on AC power are separate, although they use the same brightness tile in the Action Center and brightness sliders in the Display settings and Windows Mobility Center. For instance, you can set the brightness level to 75% when the notebook runs on AC power and 50% percent when it uses the battery (so you can save the battery life). To do so, just set the tile / slider to 75% while the laptop is plugged in the power outlet and to 50% while it’s plugged out. Windows 10 will remember your choices automatically.
Some notebook models have ambient light sensors, which are used to measure ambient lighting and adjust the screen brightness to an optimal level according to intensity of the ambient light. You can enable and disable this feature on compatible laptops with Windows 10 in the same Display settings section mentioned above. You just need to toggle the “Adjust my screen brightness automatically” switch on or off.