There are a few display devices available now that use a single USB-C input for both video (Displayport alt mode) and power (USB Power Delivery). However, only devices equipped with the appropriate USB-C port that supports this can utilize them out of the box.
Unlike traditional displays with their own power supplies, you can’t just convert one display technology to another (Displayport to HDMI, for example). The source also must provide power, which a typical Displayport or HDMI connection can not do (or at least not enough of it).
Is it possible for a device to exist that accepts an HDMI or Displayport video input, as well as a USB Power Delivery input, and produce the appropriate output to drive this sort of display? I haven’t had any luck looking for such a product, so I’m guess either I didn’t come up with the right thing to call it, it’s too niche for anyone to make, or it violates some specification rendering it impossible to produce legitimately.
Is this something that can/does exist? Or is there a reason why it can’t/shouldn’t be done?
