Dell E1916HV 19" 16:9 LCD Monitor - Manual (Page 45)

Operating the Monitor 45
You will see the following message before the DDC/CI function is disabled.
When the monitor enters the Power Save mode, the following message appears:
Activate the computer and wake up the monitor to gain access to the OSD .
If you press any button other than the power button, the following messages will appear
depending on the selected input:
If VGA cable is not connected, a floating dialog box as shown below appears. The
monitor will enter
Power Save Mode after 5 minutes if left at this state.
See Solving Problems for more information.