Dell P2312H Monitor User Manual
Page 38
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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
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:
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