Hi there,
I use Gentoo Linux and have a 6 monitor setup. 4 monitors are on one Nvidia GPU as xcreen0 and the other 2 are on another Nvidia GPU on xscreen1. I only run Plasma on xscreen0. I use compiz for compositing which is also how I get a nice display on xscreen1. This worked on Plasma desktop/workspace 5.23. Version 5.24 and 5.25 have a bug where Plasma starts up 4 shells, but instead of them all being on xscreen0 I have two on screen0 and 2 on xscreen1. This means that 2 of the 4 monitors on xscreen0 have a Plasma shell and the other two don't.

Question: is there a way to force Plasma to only see/use xscreen0 and to leave xscreen1 alone?

xrandr --listmonitors returns this on xscreen0:
Monitors: 4
0: +*DVI-I-1 1920/598x1080/336+1920+1080 DVI-I-1
1: +HDMI-0 1680/473x1050/296+240+30 HDMI-0
2: +DVI-D-0 1920/521x1080/293+1920+0 DVI-D-0
3: +HDMI-1 1920/480x1080/270+0+1080 HDMI-1

And this on xscreen1:
Monitors: 2
0: +DVI-I-1 1680/433x1050/271+0+0 DVI-I-1
1: +DVI-D-0 1920/509x1080/286+0+1050 DVI-D-0

Thanks,
Allistar.