Oh it's so much worse than that. The EDID is typically implemented with an I2C EEPROM connected directly to the AUX lines. The "edid read" procedure is no more

Oh it's so much worse than that. The EDID is typically implemented with an I2C EEPROM connected directly to the AUX lines. The "edid read" procedure is no more than reading "0xA0", the standard EEPROM I2C address, over AUX. The first time I ever sniffed that bus and saw a simple "read" command to that address I'd seen in so many other places before I almost fell off my chair.