this post was submitted on 28 Jul 2025
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What do you mean? I used multidisplay setups for 15 years, I never checked what's the DPI of my monitors is and never had issues. I just plug in any external monitors I have around and it works. I did it on desktop machines and many different laptops. I'm always baffled when people say their monitors don't work because of sync rates or DPI. What are they trying to do and what's not working?
e.g. one monitor is 96dpi, and the other is 192dpi, moving a window from one monitor to the other shouldn't result in the window becoming a different physical size, and it should render at a natural resolution on both (i.e. scaling it to half size for display on the 96dpi monitor doesn't count)
It's been a problem with 4k monitors. For them the interface has to be scaled to about 200%. When you have got a 1080p monitor next to that you have a choice of: