I'm looking for a way of configuring two independent screens on my two physical monitors, either via XFCE's workspaces or separate X servers. The video card is integrated Intel:
00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller (rev 06)
I've googled a lot of possible ways, but they're all pretty old and mostly outdated (for instance, use Xinerama, which is reportedly superseded by Xrandr), still haven't found a workable solution for multihead/multiworkspace setup.
The background: in the system there's one "real" monitor, and another that's only supposed to be displaying a specific window (so that user cannot drag windows onto it etc.) The OS is Xubuntu 18.04.
N.B.: this must be implemented using XFCE and Xfwm since the technology stack has been unambiguously defined by the architect.