Reddit reviews TESmart HDMI 4K@60Hz Ultra HD 2x1 HDMI KVM Switch 3840x2160@60Hz 4:4:4 with 2 Pcs 5ft KVM Cables Supports USB 2.0 Devices Control up to 2 Computers/Servers/DVR

I think I have standard SUB KVM now because it connects via USB.

I have a rosewell keyboard now which doesn't have any special software really, but it doesn't work if I attach it to KVM's keyboard USB (it has a usb for keyboard and a mouse). If I recall correctly, that's because the Rosewell is a "gaming keyboard" which is not a standard USB protocol and thus doesn't work on that keyboard USB.

I guess if it's really that such a big of a deal I could just get a USB expander and connect to the KVM's only "regular" USB.

Well this setup is basically the same thing as Linus's 2 gamers 1 CPU episode; and while it has some downsides, the upside is that the performance should be really close to bare metal (like within a few fps of a normal rig with the same hardware). Unlike normal VMs (which suffer performance issues), the host OS (linux) and guest OS (windows) aren't sharing resources and are instead splitting up the hardware and taking nearly direct control of the hardware you assign to them.

The downsides are that you're essentially running 2 computers at the same time and they can't share certain resources with eachother (CPU, RAM and hard disks are easy to split up, so you don't need to worry about that). Each OS needs their own GPU (unless you use certain AMD or Quadro GPUs), USB ports, monitor, and keyboard/mouse.

A hypothetical setup:

• Use a monitor/TV that accepts multiple inputs; use 2 monitors (one for linux and 1 for Windows); or use a KVM switch (example)
  
• i7-8700k (a 6 core, 12 thread CPU): I'd assign 2 cores/4 threads to the Linux machine and give the rest to Windows
  
• 16GB RAM: 4-6GB of RAM to Linux and the rest to Windows. Personally I multitask like crazy so I'd get ~24GB and assign around 8GB of RAM to Linux.
  
• GTX 1080: Assign to the Windows machine and hookup a cable from the GPU to one of the inputs on the monitor or kvm
  
• CPU's integrated GPU: Assign to Linux and hookup a cable from the motherboard to the other input on the monitor or kvm
  
• Install a PCI USB card: Assign this to Windows machine, since the motherboard's USB ports will likely be auto-assigned to the Linux machine.
  
  Then you can either have 1 keyboard/mouse plugged into the motherboard (to control Linux) and another plugged into the PCI USB card (to control Windows), or use the KVM and switch back and forth, or just unplug and plug 1 keyboard/mouse into whatever PC you need to use at that moment.

This has worked for me, though it's meant for sharing one monitor among two computers as opposed to switching live video.

https://www.amazon.com/TESmart-HDMI-Ultra-Switch-3840x2160/dp/B078LY741V

https://www.amazon.com/gp/aw/d/B078LY741V/ref=psdcmw_13983771_t1_B07NZMM2PK Have a look at this, this has hotkeys as a feature and to activate it, you double tap scroll lock and then the input you want such as Mac. I have never conventionally seen a button KVM not that I am saying they don't exist but most KVM switches are used in data centres or on servers when you have multiple of them. You do however need to put the keyboard and mouse into the KVM for the hotkeys to work.

My first thought is a KVM like this. Might be expensive and idk if it adds some marginal latency to your keyboard. You plug your PC and Switch HDMI and USB into the KVM and then the KVM to the monitor in question.

>docking station with a KVM

Something like this ?
https://www.amazon.com/TESmart-HDMI-Ultra-Switch-3840x2160/dp/B078LY741V/ref=sr_1_15?keywords=2+hdmi+monitor+kvm+switch&qid=1566783095&s=gateway&sr=8-15


But this only output 1 monitor no ?