How did you even manage to dual monitor another laptop? Is this some kind of software?
this post was submitted on 12 Mar 2024
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Yes it's an optional feature on windows 10/11 called "wireless display" and as you expected it speed depends on how good your wifi is
You should consider a virtual KVM like Barrier instead. You just run a piece of software on both computers, set one as the server, and use its keyboard and mouse to drive two or more computers like they're dual+ monitors.
The way it is far superior is you're just sending the keyboard and mouse info. Little overhead. You get to use all of the resources of both computers instead of wasting a bunch of everything on video processing. You can even still copy/paste at least text, so only dragging files across PCs is annoying, which can be worked around with shared folders.
I guess it doesn't help single applications using both monitors, but that doesn't come up often for me since the main computer is connected to multiple, too. I mostly use it as an actual kvm to switch between work and personal, and drive a satellite laptop for entertainment/doc refs.