SUMMARY I understand this is "normal" behavior in Plasma, but I haven't found a good reason why. When I create a virtual monitor using "xrandr --setmonitor VirtualMonitor auto PhysicalMonitor1,PhysicalMonitor2" in other windows managers, the screen gets spanned in my both monitors, as if they where one monitor only. But, in KDE, this doesn't happen. I've played with some commands I've found "googling", but nothing works. Is it possible to consider this in newer Plasma versions? Or is there already some procedure to make it work? STEPS TO REPRODUCE 1. Execute "xrandr --setmonitor VirtualMonitor auto PhysicalMonitor1,PhysicalMonitor2" OBSERVED RESULT Although "xrandr --listmonitors" shows the recently created virtual monitor, the monitors keep working as separated. EXPECTED RESULT My both monitors should work as if they were one wider monitor only SOFTWARE/OS VERSIONS Linux/KDE Plasma: Arch Linux with KDE Plasma (available in About System) KDE Plasma Version: 5.27.9 KDE Frameworks Version: 5.112.0 Qt Version: 5.15.11
In general using xrandr to manually manipulate the monitor config is not formally supported in Plasma, so you're on your own when you do this, sorry.
(In reply to Nate Graham from comment #1) > In general using xrandr to manually manipulate the monitor config is not > formally supported in Plasma, so you're on your own when you do this, sorry. Well, maybe it should be considered to add a similar functionality, something to let Plasma use multiple monitors as if they were one only :)