I try to mirror two monitor.
in BCC Displays I drag and drop two displays on top of each other to create a mirror.
In the header it says: Changes cannot be applied.
How do I mirror two displays in Fedora?
It usually a property below the picture of the displays that you need to change from a drop down menu. Are you using gnome or kde plasma?
I am not in front of a fedora system to check the details.
What is BCC you reference above?
Sorry BCC = Budgie Control Center.
I believe Budgie uses Gnome
I do not run budgie, any luck finding a setting to change for mirroring?
Personally I not heard of the drag and drop to do this.
I do not use budgie but do use workstation with gnome.
With gnome the gnome settings panel has a display section where the user selects mirror or join for displays.
Unfortunately I cannot get to my dual-boot laptop at present and that is the only one where I have multiple monitors available so cannot show an image of those screens.
apparently this is not possible with Budgie Control Center but with xrandr I was able to duplicate
xrandr --output DP-1 --output DP-3 --same-as DP-3
I had also to manually add this Budgie Control Center just did not want to do this.
So Budgie is using X11, or else xrandr would not have helped. Gnome/KDE use Wayland these days (by default or exclusively, depending on version).
Indeed. Fedora 43 Budgie uses X11.