I downloaded and installed the latest version of Fedora with KDE Plasma desktop for workstation. I didnot unplug my 2nd screen when installing Fedora. Even though Fedora recognises each screen correctly, there are problems. The biggest problem is, even though I checked that the correct screen was designated as my main ( number 1) screen, the sign on screen always goes to screen 2. The complete taskbar defaults to screen 2. The only way I can get the taskbar to my main screen is to duplicate it and place it on screen 1, then delete it from screen 2. I have not had this problem with Arch based distros.
there’s no need to do it.
go to display configuration,
edit arrangement (if needed, to place them accordingly)
then to change screen priorities,
and make the preferred screen primary.
the taskbar will appear on the primary screen from now on.
KDE will remember the settings.
but if you have 2 interfaces (usb-c and hdmi) they are considered different monitors, and you will have to do this setup twice.
This I had done. I shall reinstall Fedora with only 1 screen connected, then attach my 2nd screen and see what happens. I have been following Linux from all distros for decades, and have found Manjaro the best for handling multiscreen setups.
Again, I have edited the settings correctly for my 2 screens, but Fedora insists on treating my 2nd screen as the 1st screen.
can you post a screenshot of your
- settings - display configuration and
- the popup that appears when you press the change screen priorities button in the display configuration dialog? (with all screens connected and active)
I’ve had this same exact issue for years. It occurs on different systems with different hardware. Changing display config doesn’t help. The only thing that works is switching outputs on my monitor itself (I have a dual PC setup).
I’ve also got a different issue: I’ve got two systems, one uses USB for video, the other uses DP. When I go to enable my second monitor from the display settings on my second system, and then switch from USB type C to DisplayPort on my monitor, I get no output. Instead, I must simply switch from USB to DisplayPort, and the system detects my monitor. The problem is enabling the monitor from gnome settings, that always gets me into trouble. So I only switch from my monitor directly. When I switch back to USB, gnome settings doesn’t detect that there’s no longer a second screen, and very briefly I see a third display popup. Occasionally, switching back to DP leads to no output on my second monitor, and I have to restart.

