Quick adjustment
Shortcut keys: Fn (function key) +F2 (weak), Fn (function key) +F3 (strong); Adjust the brightness of the screen. If the hotkey doesn't work, there may be something wrong with the graphics card driver. Download and install the driver.
Power supply plan adjustment
On the desktop, there is an icon of power supply (that is, the icon of battery and plug) in the lower right corner of the taskbar. Click to open the "Select Power Plan" interface. Click "High Performance" and "Adjust Screen Brightness". In the "Select Power Plan" interface, click "Change Plan Settings" on the right, and use the mouse to pull the "Adjust Plan Brightness Slider" to adjust the brightness.