The method of adjusting the brightness of a computer screen mainly depends on the operating system you are using and the model of your computer. Here are several common ways to adjust screen brightness: Windows system
#1. Use shortcut keys
Most laptops are equipped with shortcut keys to adjust screen brightness. These keys are usually Fn keys and F1 keys` Combination of F2, F5, F6, or screen brightness icon key (a sun icon). You can try pressing the Fn key and adding one of these keys to increase or decrease the screen brightness.
#2. Through system settings
-Windows 10/11: Click on the notification icon in the bottom right corner of the screen (usually the small square next to the time), then click on "All Settings">"System">"Display". On the right side, you will see the "Brightness and Color" section. Drag the slider to adjust the screen brightness.
-Old version Windows: Go to "Control Panel">"Hardware and Sound">"Power Options", in the "Change Schedule Settings" of the selected schedule, click "Change Advanced Power Settings", and then find options such as "Display">"Enable Adaptive Brightness" or "Display Brightness" in the pop-up window to adjust (note: not all computers support adaptive brightness). MacOS system
-On Mac, you can adjust the screen brightness by pressing the F1 or F2 keys (note: these keys may need to be used in conjunction with the fn key, depending on your Mac model).
-You can also adjust the brightness by clicking on the Apple menu at the top of the screen, selecting "System Preferences">"Monitor", and then dragging the brightness slider in the window. External monitor
If you are using an external monitor and want to adjust its brightness, you usually need to operate it directly on the monitor. Most monitors are equipped with buttons or menus for adjusting brightness. You can refer to the user manual of the monitor for specific instructions on how to operate it. be careful
-If your computer does not have a brightness adjustment shortcut key, or the shortcut key does not work, it may be because there is a problem with your keyboard driver or your computer model does not support this feature.
-In some cases, you may need to check for options related to screen brightness in the BIOS/UEFI settings of your computer. However, this is usually not a recommended method for adjusting screen brightness during daily use.
-If you are using a desktop computer and do not have a screen brightness adjustment option, you may need to adjust the brightness through the monitor's own settings.