I have a portable touch screen that you can connect to a computer in two ways:
- Use an HDMI cable to send video+audio to the screen, then use a USB-C to USB-A cable to send touch input from the screen to the PC and use another USB-C to USB-A cable to provide power to the monitor.
- Use a single USB-C to USB-C cable for everything. (Requires the PC to have a USB-C port that supports DisplayPort Alt Mode and that can deliver more than 2W of power.)
The Laptop I want to use this touchscreen with only has old USB 3.0 ports, an HDMI port and a DisplayPort (which is already connected to another external display).
Now i would like to have an adapter that has a USB input, an HDMI input, (maybe also another power input) and a single USB-C output that supports >2W power and DP alt mode.
Does such a thing exist?
I can only find USB-C to HDMI converters and the like, but nothing that has HDMI input and USB-C output.