Man I love VM's!

I'm on a very tight deadline and my laptop died this morning and needs a reformat, usually this would be a very dire situation... Luckily I use a virtual machine for my dev env so I just remoted into a pc at my office using my phone, launched an instance of my vm and forwarded a public IP to it.

I'm currently working on my rasberry pi while machines installing linux. The only noticeable difference so far is that I only have enough ram to keep open around 5 browser tabs. :-D

Do we have vfio enthusiasts here?

Now that I made my second GPU boot into Arch Linux (inb4 I use arch, btw. jokes in the comments), I also set up a windows vm with GPU passthrough.

When I plug the monitor cable into the hdmi port of my passthrough'd GPU, I can see windows os on the screen.

My problem is that I want to have it inside of the same monitor without changing the from hdmi port to hdmi port manually, but "softwarely" (neologism ftw).

I read about looking-glass in the arch wiki (I use arch, btw. + On a serious side note though, I really like the arch wiki. It is very straightforward.), but I could not get it to synchronize with the Spice display server.

Does someone know how the solution to this problem?