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Two computers, one monitor, zero fiddling (2025)

alexplescan.com

41–50 of 153 posts

Re: Two computers, one monitor, zero fiddling (2025)

#41
This is great, I have a monitor with built in KVM (CORSAIR XENEON 27QHD240 OLED)

m1ddc works fine on my Mac, but why isn't there a single multiplatform cli tool that can be ran on Mac/Linux/Windows?

I need a Windows one for this to be useful for me.

Re: Two computers, one monitor, zero fiddling (2025)

#42
Just dropping a note to say I’ve had the same monitor for a year and I absolutely love it. I don’t care about this seamless switching — I just use HDMI1 for Xbox, HDMI2 for my computer, and then swap hobby/work when needed. It’s also good motivation to turn off the work laptop when I’m done with the day.

The monitor is fantastic though. I’ve had no issues yet, knock on wood.

Re: Two computers, one monitor, zero fiddling (2025)

#43
post #39

Earlier quoted context omitted.

I still use hardware KVMs. Tesmart is OKish, but fails within a couple years, usualy. AV Access is on par with it. Level1Techs are the best but also cost double or triple.

Where I worked in the 00s, they had rack mountable kvm. The clients were just a small box with utp and the peripherals. A double press on ctrl opened a menu and you could choose a server. Neat.

it was embedded/client land for embedded systems that were connected to tvs (had one of those on my desk too). i had a primary windows dev box for wrs tornado and e-mail and then a linux box for ci dev and build/release infra. the kvm also allowed me to switch to whatever engineering sample hw i had on my desk. fun times!

Re: Two computers, one monitor, zero fiddling (2025)

#44
I have my Windows gaming rig in a rack at home, and run Apollo [1] on it. Using that, I can game on any Apple TV (with an Xbox controller) or the MacBook (connected to a display/keyboard/mouse) anywhere in my home. With wired networking 60fps at 4K is no problem at all.

This would be easy to set up the other way around, too: having a gaming rig on your desk with Moonlight, and running Linux on another machine somewhere in the network with Apollo to host the development setup.

No KVM (or KVM-equipped monitor) or other special hardware needed.

1: https://github.com/ClassicOldSong/Apollo

Re: Two computers, one monitor, zero fiddling (2025)

#45

Isn’t the answer buy a kvm switch? If yes this could have been really short

No, the worst part of a KVM switch is the video signal switching. You want as few switches in the video signal path as possible and the higher bandwidth you need them to be the more expensive they're going to be. You're already paying for the one in your monitor, so taking advantage of that is the right solution.

IME even high-end KVM switches experience occasional signal interruption or, more often, failure to synchronize at all on output switch.

Do what OP did.

Re: Two computers, one monitor, zero fiddling (2025)

#46

I did something similar last year with a monitor without built-in KVM but with good DCC support (Ultrasharp U3417W) and Synergy [0]. I use Synergy as part of my desk setup already, but needed a way to view the UI of a normally headless machine. The solution I built was a small shell script that terminated the active Synergy session and started a new one with a different config file (so keyboard/mouse input would map…

does synergy works better now? 3 years ago, every week I would get into a situations where one machine was not connecting to the other, and I had to randomly restart synergy so maybe it connects. fun to do that 5 min before the meetings.

Re: Two computers, one monitor, zero fiddling (2025)

#47
With Windows and AutoHotkey and https://www.nirsoft.net/utils/control_my_monitor.html

You can add this .ahk script to run at startup:

    ^F4::
      Run C:\Users\YourNameHere\Documents\AutoHotkey\ControlMyMonitor /SwitchValue Primary 60 17 3
      Return
Where the file path is where you've put ControlMyMonitor.exe, "Primary" means the main Windows display, the "60" means input select, and the "17" and "3" are the values you observe in ControlMyMonitor when each display you want to switch between is enabled.

You can now press Ctrl+F4 to toggle inputs.

Re: Two computers, one monitor, zero fiddling (2025)

#48
post #5

Isn’t the answer buy a kvm switch? If yes this could have been really short

He bought a $900 monitor that has a KVM built in

~$900, and it takes ~3 seconds to switch...

I'll pursue this when "they" decide to get real and make this not suck. Until then, I have sufficient alternatives.

I appreciate the writeup. It convinces me that integrated KVM stuff ~~ except for fewer wires ~~ isn't much better than the mess that's prevailed for years now, and I'm not missing much.

Re: Two computers, one monitor, zero fiddling (2025)

#49
post #33

I gave up on a hardware solution to this and currently just use Screen Sharing to "remote" into my personal machine from my work machine, which I guess only works because they're both macs, although VNC probably solves this in a cross platform way. I have an Apple studio monitor so built-in KVM isn't possible, although maybe there's a jailbreak for it since it has its own processor and firmware? I still just vastly p…

Does screen sharing actually have reasonable resolution and latency befitting of the Apple Studio Monitor?

On LAN (no internet, wired), it's quite decent. With e.g. Parsec, it's quite high image quality, low single digit latency, so quite usable.

Re: Two computers, one monitor, zero fiddling (2025)

#50
post #33

I gave up on a hardware solution to this and currently just use Screen Sharing to "remote" into my personal machine from my work machine, which I guess only works because they're both macs, although VNC probably solves this in a cross platform way. I have an Apple studio monitor so built-in KVM isn't possible, although maybe there's a jailbreak for it since it has its own processor and firmware? I still just vastly p…

Does screen sharing actually have reasonable resolution and latency befitting of the Apple Studio Monitor?

Not really, unfortunately, even on wired LAN latency is noticeable, but I'm just editing code so it's at least doable. Resolution isn't bad. I wouldn't recommend it for graphic work or gaming. The only benefit that isn't degraded is the nanotexture on the studio montor, haha.
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