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Display Data Channel
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{{short description|Communication protocols}} '''Display Data Channel''' ('''DDC''') is a collection of [[Protocol (computing)|protocols]] for digital communication between a [[computer display]] and a [[Video card|graphics adapter]] that enable the display to communicate its supported [[display modes]] to the adapter and that enable the computer host to adjust monitor parameters, such as brightness and contrast. Like modern analog VGA connectors, the [[DVI]] and [[DisplayPort]] connectors include pins for DDC, but DisplayPort only supports DDC within its optional Dual-Mode DP ([[DisplayPort#DisplayPort Dual-Mode (DP++)|DP++]]) feature in DVI/HDMI mode. The standard was created by the [[Video Electronics Standards Association]] (VESA).
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