Dell E1916HV 19" 16:9 LCD Monitor - Manual (Page 44)

44 Operating the Monitor
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 1366 x 768 (for E1916HV) or
1600 x 900 (for E2016HV) or 1920 x 1080 (for E2216HV).