I know there are a few posts like this already, but I think I've got an idea that may work.
I have a four computer KVM switch that has hotkey support, essentially if you type , , 1-4, you can switch between computers one through four. The switch has three ports on the front: keyboard, mouse, hub. The Comet works great when connected to the hub port on the KVM, but the keyboard port is needed for the hotkey support so I'd still need to have a physical presence to switch inputs. When I plug the Comet into the keyboard port, I can sometimes get things working if I disable the mouse but often it simply won't recognize input at all on my Linux or Windows systems behind the switch. However, I can use the KVM Switch hotkeys in this setup even when the keyboard doesn't function. On Linux clients I end up with errors like these:
What does work is a laptop-like terminal, but obviously this needs local access. This terminal seems to emulate a USB keyboard with a touchpad and the KVM switch is fine with that. I've been trying various USB device identities to no avail, my guess is that the profile advertised by the Comet just isn't compatible.
If there was a USB profile that simply looked like a keyboard with a pointing device similar to the Vilros VILP108 and had no other functionality (I don't need audio or anything else) I think it would work. I'd be happy to install test firmware if that's something that can be done easily.
