@Flachbau Yes it works with HDMI plugs 4096 x 2160 @ 60hz. Just make sure to specify the startup resolution and scaled base resolution on switchsresX for the plug not your monitor.
@james on laptops you'll have to mirror your own laptop screen to the monitor and make sure that is displaying a 16:9 HiDPI resolution
theBNT
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Please get out. This whole page is for those who unable to use high DPI on sub 4K displays. Please take your Dell UP2715K and shove it up yours. PLEASE SOMEONE FIND A WAY TO USE HIDPI ON <4K DISPLAYS. PLEASE SOMEONE