Dell S2218H User Manual page 30

If VGA or HDMI 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.
See Troubleshooting
30
| Operating Your Monitor
Dell S2X18H/HX
? No VGA Cable
The display will go into Power Save Mode in 4 minutes.
www.dell.com/support/monitors
Dell S2X18H/HX
? No HDMI Cable
The display will go into Power Save Mode in 4 minutes.
www.dell.com/support/monitors
for more information.
or