No matter what’s causing it, there are a few simple fixes you can apply to your PC to stop it from automatically dimming. One of these methods should resolve the issue.
Disable Adaptive Brightness
Windows 10 comes with a feature called adaptive brightness that automatically adjusts the brightness of your display. If this option is enabled, and the surrounding environment changes, Windows automatically dims your screen. In this case, turn the adaptive brightness feature off and see if your issue gets resolved. You can turn this option back on anytime you want. From now on, Windows 10 won’t automatically increase or decrease your display’s brightness. If your screen gets too dark or too light, use the brightness slider on the Display settings menu to manually adjust the brightness levels.
Remove the Latest Windows 10 Update
Some users report that their screen started dimming right after installing a Windows update. In this case, you can remove the latest Windows 10 update you’ve installed. It might fix the issue. If your screen doesn’t dim after removing the update, the update was the culprit. You’ll find these latest Windows updates at the Settings > Update & Security > Windows Update path on your PC.
Check the Startup Programs List
If your Windows 10 screen dims a few seconds after booting the computer, a startup program might be the reason. Your system loads many programs at the boot, and it’s worth checking this programs list to find any suspicious items.
Use Power Troubleshooter
Windows 10 includes many troubleshooters, one of which is a power troubleshooter. With this, you can find and resolve most power-related issues, including screen dimming issues, on your PC. To run the troubleshooter:
Update the Graphics Card Drivers
A possible reason your Windows 10 PC’s screen automatically dims is that you’re using outdated graphics drivers. Graphics drivers allow your graphics card to interact with your system, and so you should always keep these drivers up to date. If you haven’t updated these drivers in a long time, run a drivers update as follows.
Turn the Screen’s Power Saving Mode Off
If your video or graphics card comes from a reputed manufacturer, it’s likely a manufacturer tool is installed on your PC. This tool helps you set up various options for your card. It’s possible that this tool has enabled the power saving mode for your graphics card. In this case, the mode automatically dims your screen after a certain time. To fix this, simply turn off the power saving option in this utility. For the following example, we’ll use an Intel utility to disable the power saving mode. Your Windows 10 PC’s screen should hopefully no longer dim automatically. And if this is the case, please let us know what method worked for you in the comments below.
