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USB-C

USB-C is a reversible USB connector standard supporting data transfer, charging, and video output using a symmetrical connector and cable design.

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Why did the cheap cable fail completely?

The last thing I learned about these cables is that there are passive and active cables. A passive cable simply passes the signal through, assuming your devices already know how to talk to each other, while an active cable contains a chip inside that converts one signal into another. This matters because HDMI and USB-C are not the same things, nor the same signal. If I were connecting a USB-C laptop to an HDMI monitor, a simple passive-looking cable might work because the USB-C device is already sending a compatible video through DP Alt Mode. But since I was trying to connect from HDMI to my U

I bought an HDMI-to-USB-C cable that didn't work, and now I know why they're so confusing

Why did it never take off?

The vision with the introduction of HDMI Alt Mode was native HDMI without the dongle. The HDMI licensing administrator wanted to eliminate the need for expensive active adapters that convert signals, so HDMI Alt Mode was born. It works by having the source device, whether that's a phone or laptop, detect an HDMI display and reconfigure its USB-C pins to output raw HDMI signals. This means you could buy a $5 passive cable that behaved exactly like a standard HDMI cable. Once swapped, it supports consumer electronic control, audio return channel, and even HDMI Ethernet, features that are often s

This lesser-known USB-C feature never really took off

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