Dell E2318H User Manual page 37

OSD Messages
When the monitor does not support a particular resolution mode you will see the
following message:
This means that the monitor cannot synchronize with the signal that it is receiving from
the computer. See Monitor Specifications for the horizontal and vertical frequency
ranges addressable by this monitor. Recommended mode is 1920 x 1080.
You will see the following message before the DDC/CI function is disabled.
The following Power Warning Message box applies to Brightness functions for the first
time when you adjust the Brightness level above the default level.
Operating the Monitor 37