Is it actually I2C over the Thunderbolt cable? I had assumed it was I2C just bet... | Hacker News

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		mypalmike on July 30, 2021 \| parent \| context \| favorite \| on: The journey to controlling external monitors on M1... Is it actually I2C over the Thunderbolt cable? I had assumed it was I2C just between the CPU and video hardware on the motherboard.

alin23 on July 31, 2021 [–]

It is really I2C over whatever cable you have between your monitor and your computer.

I don’t know how they multiplex it through the Thunderbolt little wires but it does work.

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