Questions about *Extended Display Identification Data*, extra data used to report display's capabilities.
EDID (Extended Display Identification Data) is a data structure that displays send to devices they are connected to. EDID contains various fields that can be used to determine display's capabilities and distinguish specific displays.
Notable fields supported by EDID 1.3:
- Manufacturer ID
- Manufacturer product code
- Serial number
- Date of manufacture
- Video input parameters
- Maximum supported resolution
- Display gamma
- Supported energy conservation modes
- Supported color modes
- Supported resolutions
More detailed description of the EDID structure is available in the Wikipedia article on EDID.