To try this, right-click the Begin icon, after which click on System Supervisor. Step 1: Begin by opening the System Supervisor. Disabling, after which enabling the show adapter in your laptop could repair the problem. ![]() Screen brightness does not change after moving the Display Brightness Slider. At instances, the show adapter in your laptop can glitch out and cease the brightness slider from functioning correctly. On a laptop, the battery saver plan you are running can also have a big impact on the overall brightness of your system. How to resolve issue with Display brightness slider. ![]() So if the above solutions are not working, try this one. This will detect as well as an attempt to fix power problems, including the battery. Switch to the right pane, locate and select PowerClick on Run the Troubleshoot button(see snapshot). While there, check that the brightness isn't automatically adjusted by your PC or laptop. Press the 'Win + I' hotkeys to open the Windows Settings application. How to Fix a Low Brightness Problem on a Laptop The fourth solution to solve the issue Windows 10 brightness not working is to use the Microsoft Basic Display Adapter. Go to Control Panel > System and Security > Power Options and check that your power options aren't affecting the brightness on your screen. You can also try changing the cable if re-plugging the graphics card doesn’t work.įinally, you may need to replace your GPU with another to see if the graphics card is the culprit. Sometimes the issue lies with the video cable connecting the GPU to the monitor. Try unplugging and then re-plugging the card to see if your PC display brightens up. If this doesn't work, the issue may be caused by a faulty dedicated GPU. If monitor brightness is set perfectly, but it is still too low, change the settings to default and see if the screen gets brighter. On a desktop computer, make sure the brightness setting of your monitor is tuned properly by using the buttons provided on the monitor. How to Fix a Low Brightness Problem on a PC If your computer screen is too dark on full brightness, check your monitor settings if you are on a desktop PC and the Windows power settings if you are on a laptop. ![]() What to Do if Your Computer Screen Is Too Dark, Even on Full Brightness
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