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Extended Display Identification (EDID) A Primer
https://www.quantumdata.com/pdf/EDID_WP.pdf#:~:text=EDIDs%20provide%20a%20variety%20of%20information%20describing%20the,the%20VESA%20block%20and%20the%20CEA%20extension%20block.
Extended Display Identification (EDID) A Primer
https://www.quantumdata.com/pdf/EDID_WP.pdf
EDIDs provide a variety of information describing the capabilities of a display device or audio system. The data is arranged in 128 byte blocks. The VESA standard requires just a single block for VGA, DVI and DisplayPort. However, DisplayPort EDIDs will be enhanced to
Understanding EDID - Extended Display Identification Data E
https://media.extron.com/public/download/files/articles/understandingedid.pdf
so that multiple 128-byte data blocks could be exchanged. This is known as E-EDID and has been implemented in many consumer devices. In fact, the CEA - Consumer Electronics Association has defined its own EDID extensions to cover additional video formats and to support advanced multi-channel audio capabilities. In December 2007, VESA released
Extended Display Identification Data - EIA/CEA-861 ...
https://www.liquisearch.com/extended_display_identification_data/eiacea-861_extension_block
EIA/CEA-861 Extension Block The CEA EDID Timing Extension was first introduced in EIA/CEA-861, and has since been updated several times, most notably with the -861B revision (which was version 3 of the extension, adding Short Video Descriptors and advanced audio capability/configuration information), -861D (which contains updates to the audio segments), …
Bad EDID causing audio failure · Issue #3218 · …
https://github.com/raspberrypi/linux/issues/3218
Starting at byte 4 you then get the Data Collection Blocks, each of which has a length field. In this case, the offset at byte 2 is reported as 0x2e (46). From byte 4 we have 4 blocks, lengths 17, 10, 4, and 14 for a total of 45 bytes. Add in the 4 byte header at the start of the block and you have 49 (0x31) bytes.
E-EDID VESA ENHANCED EXTENDED DISPLAY …
https://glenwing.github.io/docs/VESA-EEDID-A2.pdf
The EDID data structure is independent of the communications protocol used between the display (sink) and the host (source). Enhanced EDID defines a basic data structure (known as BASEEDID or block 0) of 128 bytes that all compliant displays shall supply.
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