https://bugs.kde.org/show_bug.cgi?id=460399

            Bug ID: 460399
           Summary: [wayland][plasma 5.26.0] multi-monitor setup plasma
                    fails to switch primary and presents non primary
                    layout
    Classification: Plasma
           Product: plasmashell
           Version: git-stable-Plasma/5.26
          Platform: Archlinux
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: Multi-screen support
          Assignee: plasma-b...@kde.org
          Reporter: cellst...@gmail.com
                CC: aleix...@kde.org, notm...@gmail.com
  Target Milestone: 1.0

Created attachment 152793
  --> https://bugs.kde.org/attachment.cgi?id=152793&action=edit
journalctl output

SUMMARY

I have a dual monitor setup (1 DP monitor and 1 hdmi TV) where only 1 screen is
on as default.
When I turn on second monitor (TV) and ask plasma to switch primary out to
second monitor (TV) and turn off the primary out (DP) -- I use the Display
Configuration Widget for this --, the wallpaper changes (becomes the wallpaper
of the secondary monitor I use when both are on) and the widgets that are
placed on the primary monitor disappear.

I also noted that if at login the  secondary monitor (TV) is turned on, KDE
does not see it (I cannot switch output) and the desktop is shown only on the
primary monitor (default behavior)
To get KDE to 'see' the TV I have to turn it off and on again
The above was not happening with latest 5.25.5

All above using wayland 

below output of journalctl when trying to switch output from DP to hdmi (TV
turned on and I want to see the desktop on TV and DP off)

My system as below (Archlinux with latest KDE& Plasma)

Operating System: Arch Linux
KDE Plasma Version: 5.26.0
KDE Frameworks Version: 5.99.0
Qt Version: 5.15.6
Kernel Version: 6.0.1-zen1-1-zen (64-bit)
Graphics Platform: Wayland
Processors: 24 × AMD Ryzen 9 5900X 12-Core Processor
Memory: 31.3 GiB of RAM
Graphics Processor: AMD Radeon RX 6800

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