Dell P2424HT User Manual page 62

When you press the monitor power button or PC power button, the Monitor/PC
state is as follows:
1
USB-C
Initial system power state (ON)
USB-C
1
USB-C
Initial system power state (OFF)
USB-C
• When the monitor and the PC power state are both ON, press and hold the
monitor power button for 4 seconds, the screen prompt will ask if you would
like to shut down the PC.
62 │ Setting up the monitor
Initial monitor power state (ON)
Press PC/Monitor power button
Initial monitor power state (OFF)
Press PC/Monitor power button
2
New power state of monitor (OFF)
New power state of system (OFF)
USB-C
2
New power state of monitor (ON)
New power state of system (ON)
USB-C