Hi. I recently switched to KDE. Before I had EndavourOS with Xfce and before Windows. I don’t think my usecase is unusual. I have PC (not laptop) and 2 monitors. Main on the left, secondary on right. Before I was used to turn off secondary monitor after work. So I pressed Mod(Win)+P and chosen single monitor. Second one did went dark. All was ok.
When I switched to KDE I see similar stuff (it’s just named differently but I don’t care). When I press Mod+P and then choose Laptop screen, an icon that clearly shows only one monitor as output, screen just blinks and my desktop stays on both monitors. I have to manually go to display settings and disable secondary monitor. Same if I press switch to external screen. I still have output on both monitors like before without change.
It’s pretty annoying and I can’t seems to find any workaround so it will work as in Xfce or Windows before.
Why is it like this? Or how to fix it? Let me know what more info you want and how to obtain it.
Thank you.
do you use SDDM, and X11 after the change to KDE.
The change of the desktop environment from Gnome 2 KDE is not always
without problems, so I would say it is not a problem with EOS or KDE…?
sudo pacman -S eos-packagelist
eos-packagelist --install KDE-Desktop
I had XFCE before for a short while.
I did installed it (KDE) with eos-packagelist i did changed to SDDM (with tool from EOS welcome) and I’m using X11
that is strange usually it is just plug-and-play without any keys, just be sure the monitor has the right in signal
Like this?
It sounds like a bug; what you are describing I believe should be supported. You can report the bug here: https://bugs.kde.org/
yes that do nothing when I already have 2 monitors enabled. It don’t switch only to one screen.
One on left (external screen only) just switch to dual screen.
I’ve written on KDE forums but nobody seems to care
switching DE is sometimes problematic, I recommend a clean KDE install
Clean like complete system? I don’t want to do that 
Isn’t there like - let check what is missing? Maybe there is weird line from xfce or something.
clean install helped. I didn’t figured out what was the problem. All I did was that I switched from XFCE to KDE with help of eos-packagelist. Thanks all. Sorry for wait. I just had to find free time to reinstall.
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