Dell P2418HZ User Manual page 46

When the monitor enters the Power Save Mode, the following message appears:
Dell P2418HZ
If you press any button other than the power button, the following messages will
appear depending on the selected input:
Dell P2418HZ
If HDMI or DP cable is not connected, a floating dialog box as shown below
appears. The monitor will enter Power Save Mode after 4 minutes if left at this
state.
Dell P2418HZ
Dell P2418HZ
46 │ Operating your monitor
Dell 24 Monitor
Entering Power Save Mode.
Dell 24 Monitor
?
No HDMI signal from your device.
Press any key on the keyboard or move the mouse to wake it up.
If there is no display, press the monitor button again to select
the correct input source.
Dell P2418D
No HDMI Cable
?
The display will go into Power Save Mode in 4 minutes.
www.dell.com/support/monitors
Dell P2418D
? No DP Cable
The display will go into Power Save Mode in 4 minutes.
www.dell.com/support/monitors
P2418D
or
P2418D