Dell U4021QW User Manual page 58

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Display Info
DDC/CI
58 | Operating the monitor
Description
Select this option to adjust the OSD settings such as the
DDC/CI, LCD conditioning, and so on.
UltraSharp 40 Monitor
Brightness/Contrast
Input Source
Color
Display
PIP/PBP
USB
Audio
Menu
Personalize
Others
Displays the monitor's current settings.
DDC/CI (Display Data Channel/Command Interface)
allows your monitor parameters (brightness, color balance,
and etc.) to be adjustable via the software on your
computer. You can disable this feature by selecting Off.
Enable this feature for best user experience and optimum
performance of your monitor.
UltraSharp 40 Monitor
Brightness/Contrast
Input Source
Color
Display
PIP/PBP
USB
Audio
Menu
Personalize
Others
Display Info
DDC/CI On
LCD Conditioning O
Firmware 32T101
Service Tag ABCDEFG
Reset Others
Factory Reset ENERGY STAR
Display Info
DDC/CI
LCD Conditioning
On
Firmware
O
Service Tag
Reset Others
Factory Reset
®
Exit
Exit