I have a 43'' TV-sized 4K monitor and I'd like to split it into 4 virtual screens using xrandr --setmonitor.
--setmonitor name geometry outputs
Define a new monitor with the given geometry and associated to the given outputs. The output list is either the keyword none or a comma-separated list of outputs. The geometry is either the keyword auto, in which case the monitor will automatically track the geometry of the associated outputs, or a manual specification in the form w/mmwxh/mmw+x+y where w, h, x, y are in pixels and mmw, mmh are the physical dimensions of the monitor.
I saw an example command to split a screen in 2 at https://askubuntu.com/a/1398786/10263 -
xrandr --setmonitor A 1920/440x1600/367+0+0 HDMI-1
xrandr --setmonitor B 1919/440x1600/367+1921+0 none
But I assume I need to adapt it to my own monitor's resolution and physical size (and to split in 4). My monitor model is LG 43UN700 - so it is 43'' and 3840x2160px (and 952x535 mm).
From http://screen-size.info/ -
