With the following ways to fix the failure to adjust the laptop screen brightness, it will hopefully help you adjust the brightness of your laptop screen easily, thereby helping to extend device battery life and protect eyes when used regularly.
If you are still struggling to know how to fix the error of not adjusting the laptop screen brightness? Readers and continue to refer to the article below of Software to learn details.
How to adjust laptop screen brightness and extend battery life
Fix the error of not adjusting the laptop screen brightness
There are many reasons for the error of not adjusting the laptop screen brightness, be it due to a faulty system, a problem, or due to Windows update, … .
To fix this error, a temporary solution is to restart the laptop and check if the error persists.
If the error persists, refer to some ways to fix it below:
Method 1: Update the Display Adapter driver
Step 1: Right-click the Start button, select Device Manager.
Step 2: Find and expand the Display Adapters section.
Step 3: Right-click the Display Adapter displayed in the list, and click Update Driver Software.
Step 4: Select the Automatically search for the updated driver software option.
Step 5: Finally, restart your laptop to apply the change and check if the error persists.
Method 2: Enable Adaptive Brightness
Step 1: Open the Control Panel window.
Step 2: On the Control Panel window, find and click Power Options.
Step 3: Click Change plan settings next to the power plan you are using.
Step 4: Click Change advance power settings.
Step 5: On the next window, click Display.
Step 6: On the window displayed on the screen, find and change the values of the Display brightness , Dimmed display brightness and Enable adaptive brightness options.
Step 7: Click Apply =>OK and check if the laptop screen brightness has been adjusted.
Method 3: Enable PnP Monitor
Step 1: Right-click the Start button, select Device Manager.
Step 2: Next on the Device Manager window, find and click on Monitors.
Step 3: Find and right-click on the Generic PnP monitor to see if the option is enabled.
Step 4: If not, click Enabled device to activate.
Step 5: Click the Actions tab in the top corner of the Device Manager window.
Step 6: Select Scan for Hardware Changes.
Step 7: Wait until the scan is complete and see if the error remains.
Method 4: Update the Registry
In case if the above methods have been applied but the results are not satisfactory, the other way is to try updating the Registry and see if the error persists.
Note: this involves tweaking the Registry, so Software recommends that you back up your system before doing so to avoid a bad situation.
Next, follow the steps below:
Step 1: Open the Run window by pressing Windows + R, then typing regedit in it and then pressing Enter to open the Registry Editor window.
Step 2: On the Registry Editor window, navigate along the path below:
HKEY_LOCAL_MACHINESystemControlSet001Control
Step 3: Set the value in the value data field of the Class{4d36e968-e325-11ce-bfc1-08002be10318}000 and FeatureTestControl options to 0000ffff.
Finally, check if the error persists.
Option 5: Bring to reputable repair centers
Finally, if you have applied all the methods but do not lose, it is time to think about the help of laptop repair centers.
If you are living and working in Hanoi and you do not know any reputable laptop repair address, refer to the article Top
Similarly, if in Ho Chi Minh City, readers can refer to the article Top
However, before taking your laptop for repair, you should also pay attention to a few things to avoid being “boiled”. For more information, readers visit the article
https://thuthuat.taimienphi.vn/sua-loi-khong-chinh-duoc-do-sang-man-hinh-laptop-59135n.aspx
The above article Software has just shown you some ways to fix the error of not adjusting the laptop screen brightness. Hope the above article has provided you with useful information. Good luck!