This problem is solved by EDID and DDC, as it enables the display to send information to the graphics card it is connected to. Some VGA connectors in personal computers provided a basic form of identification by connecting one, two or three pins to ground, but this coding was not standardized. īefore Display Data Channel (DDC) and EDID were defined, there was no standard way for a graphics card to know what kind of display device it was connected to. Version 2.0 defined a new 256-byte structure but it has been deprecated and replaced by E-EDID which supports multiple extension blocks. JSTOR ( February 2013) ( Learn how and when to remove this template message)ĮDID structure (base block) versions range from v1.0 to v1.4 all these define upwards-compatible 128- byte structures.Please improve this section by adding secondary or tertiary sources.įind sources: "Extended Display Identification Data" – news This section relies excessively on references to primary sources. The EDID data structure includes manufacturer name and serial number, product type, phosphor or filter type (as chromaticity data), timings supported by the display, display size, luminance data and (for digital displays only) pixel mapping data.ĭisplayID is a VESA standard targeted to replace EDID and E-EDID extensions with a uniform format suited for both PC monitor and consumer electronics devices. The data format is defined by a standard published by the Video Electronics Standards Association (VESA). ( Learn how and when to remove this template message)Įxtended Display Identification Data ( EDID) and Enhanced EDID (E-EDID) are metadata formats for display devices to describe their capabilities to a video source (e.g., graphics card or set-top box). ( May 2023) ( Learn how and when to remove this template message) Statements consisting only of original research should be removed. Please improve it by verifying the claims made and adding inline citations. This article possibly contains original research.
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