This automatic setting helps make sure your screen is readable wherever you go. You might also see another check box displayed: Help improve battery by optimizing the content shown and brightness.
For more info, see Adaptive brightness and contrast in Windows. You might not see the Brightness slider on desktop PCs that have an external monitor. To change the brightness on an external monitor, use the buttons on it. Select action center on the right side of the taskbar, and then move the Brightness slider to adjust the brightness. Under Brightness and color, look for the Change brightness automatically when lighting changes check box, and then select it to use this feature.
Even if you use it, you can still move the Change brightness for the built-in display slider to fine-tune the brightness level. You might not see the Change brightness for the built-in display slider on desktop PCs that have an external monitor. The Brightness slider appears in action center in Windows 10, version If you don't have a desktop PC and the slider doesn't appear or work, try updating the display driver. In the search box on the taskbar, type Device Manager , and then select Device Manager from the list of results.
In Device Manager, select Display adapters , then select the display adapter. Press and hold or right-click the display adapter name, then select Update driver and follow the instructions. Change your screen brightness.
Table of contents. Surface screen issues. Screen brightness. Windows 11 Windows 10 More Notes: You might not see the Brightness slider on desktop PCs that have an external monitor. Notes: You might not see the Change brightness for the built-in display slider on desktop PCs that have an external monitor. Need more help? Expand your skills. December 8, at pm. Laptop is a Dell Latitude Alan Robinson says:.
December 21, at pm. My keyboard lighting on an Alienware M15 suddenly stopped working. Takes a little while to adjust colours for different sections but finally managed to achieve. Lots of different colours and brightnesses. Brandon says:. November 29, at pm. Jan says:. October 31, at am. I tried all the above. When I restart my machine I see the backlight momentarily light up, then turn off. The keyboard troubleshooter shows that all is working correctly. No suggestions are working.
I only just noticed it today. Any other ideas? Nothing seems to work. Gruss says:. December 18, at pm. I have a Asus Aspire 5 and mine did that too. Turns out I pushed F8 accidentally which is a white box with a capital letter A and lines coming off the top. This key turns the keyboard off and on. Lindsay says:. May 29, at am. I kept on pressing F8 with Fn key, turned out it should only be just F8. Hope this helps!
Noah says:. October 21, at am. October 19, at pm. October 11, at am. Jade says:. October 15, at pm. I also checked for troubleshoot problems and everything was fine. Does HP support the backlight settings or is it just my laptop? November 18, at am. Glenda White says:.
September 3, at pm. I did the first one also, same thing there is no option for the back light. Dell G7 Maxwell says:. October 1, at pm. Racheal says:. July 24, at am. I had this issue for a while. At the top click the FX tab and go from there. I hope this helps someone. August 26, at pm. Janus says:. July 18, at am. When I go to the Windows Mobility Center it has no option relating to the keyboard backlight.
Shay says:. June 7, at am. When I tried the first method, I got to the mobility center page there was no keyboard back lights option there. July 8, at pm. Donald Weber says:. Pattawee says:. May 27, at am. Matthew Todorovski says:. April 14, at pm. My laptop is a no-name brand. I have searched settings and Google, and I am still unable to work out how to switch the keyboard backlight on. This feature is why I purchased my laptop!
I am quite frustrated. I hope After Sales Support can help me. March 25, at pm. August 5, at am.
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