Dell E1715S Monitor - Manual (Page 43)

Operating the Monitor
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43
OSD Messages
When the monitor does not support a particular resolution mode you will
see the following message:
E1715S:
The current input timing is not supported by the monitor display. Please
change your input timing to 1280 X 1024, 60Hz or any other monitor
listed timing as per the monitor specifications.
Dell E1715S
This means that the monitor cannot synchronize with the signal that
it is receiving from the computer. See for the horizontal and vertical
frequency ranges addressable by this monitor. Recommended mode is
1280 x 1024.
You will see the following message before the DDC/CI function is
disabled.
The function of adjusting display setting using PC application will be
disabled.
Do you wish to disable DDC/CI function?
Dell E1715S
No
Yes