It is what enables a modern personal
computer to know what kinds of monitors are connected to it. EDID is defined
by a standard published by the Video Electronics Standards Association
(VESA). The EDID includes manufacturer name and serial number, product type,
phosphor or filter type, timings supported by the display, display size,
luminance data and (for digital displays only) pixel mapping data. Even in cases where the DTDs were read, the
drivers are/were still often limited by the standard timing descriptor
limitation that the horizontal/vertical resolutions must be evenly divisible
by 8. According to Brian Markwalter, senior vice president, research and
standards, CEA, -864F "includes a number of noteworthy enhancements,
including support for several new Ultra HD and widescreen video formats and
additional colorimetry schemes.
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