FN+F4: Put the computer into standby mode, and the computer will be awakened immediately when you press the FN key again.
FN+F12: Put the computer into hibernation mode
FN+F7: When there is an external monitor LCD, you can press the "FN+F7" key to switch different display modes (external display → both inside and outside the show →LCD).
FN+F2: Turn on/off battery capacity slot display
Fn+f8: Turn on/off the screen expansion function
Fn+home: Increase the brightness of the LCD screen
Fn+end: Reduce the brightness of the LCD screen
FN+F3: Causes the computer to enter wait mode, and when the user presses any key (except FN), the computer immediately reverts to the state before standby.
Fn+backspace: Mute the computer
Fn +pgup: Increase volume/Cancel Mute
Fn +PGDN: Decrease volume/Cancel Mute
Fn+lnsert: Raise the volume of the built-in speaker
Fn+delete: Lower the volume of the built-in speaker