My cheap-ish Samsung (cheap for a QHD) has an HDMI and a DisplayPort input. If I hook up a laptop to each input, both laptops think the screen is on- even the one who is not currently being displayed.

An HDMI splitter provides the capability to project the same image to multiple screens, which is handy if you’re, say, hosting a big sports viewing party across several TVs or a head-to-head gaming ...

I don’t know about you, but working on multiple devices at once makes me feel like some kind of 90s hacker. I’m programming on my PC, answering emails on my laptop, responding to chat messages on my ...

What you want is a mixer. They are not normally very expensive and can be used for other things too. If you have multiple analogue inputs (5+ channels) then you will be able to go that rout. The cheep ...