Why would you need to do this? USB to HDMI adapters exist and now that USB-C is mainstream there are adapters for that too and significantly cheaper than a raspberry pi. One use I would like to see is a pi convert an HDMI signal to ethernet and convert it on the other side with a second pi.
Lol basically any DisplayLink adapter would work. Way cheaper.
Lol basically any DisplayLink adapter would work. Way cheaper.