A KVM usually have circuitry that can handle a specific total bandwidth and a specific number of HDMI or DP ports (I've seen a few where using 2x 4K displays would disable the remaining ports until disconnected due to bandwidth).
To make this work as expected for a KVM you need circuitry to handle all ports being used for either standard (expensive, lol), and have each physical port connected to I/O on both the HDMI and DP controller. Or support half and half, but connect each port to even more I/O ports and start doing switching...
Welcome to the world my guy. Little old me can't change it, but I can express my desire for it. You will see a lot of people doing the exact same thing across many many topics, luckily the port on the back of a TV is hardly an important issue for me to take the time to campaign further.
Calm down bud. I had no issue with the initial post, but the comment I replied to sounds like you're trying to actually elicit change. My response was meant to make it clear that the general audience here agrees and you need to focus your efforts elsewhere.
eSATA seemed like it had potential but I can’t say I ever actually used it. I remember those ports, though. Might have a motherboard kicking around in storage with one.
There was a brief period of time where eSATA was starting to show up and there were never enough USB 3 ports. eSATA would have been kind of handy but I've never used it either.
I used esata back in the day and I loved it. I had a second hard drive that I could plug into my laptop with all my games on it. This was back when SSDs were $1 per GB on a good day so 120GB SSDs were typical.
And even in the early days of USB 3 external HDDs were slow. It wasn’t until uasp became a thing that they didn’t suck outside of backing up large files.
Not actually a terrible idea, even if it frequently was limited to powering 2.5" drives due to a lack of 12V. Some had extra contacts for that, but most that I saw didn't.
You can add these ports to a PC. With help from the motherboard and power supply, they'll support both USB and eSATA, including mechanical drives that need 12V power.