Thank you very much Felix and Terry.
The solution provided by Felix worked!
The steps I followed for F24 were:
- I got the configuration path with:
# kf5-config --path config
/root/.config/:/etc/xdg/
- I created the file /etc/xdg/kded5rc with the next content:
[Module-kscreen]
autoload=false
- I created the file /etc/X11/xorg.conf.d/10-monitor.conf for specifying a resolution:
# cat /etc/X11/xorg.conf.d/10-monitor.conf
Section "Monitor"
Identifier "DVI-1"
Option "PreferredMode" "1024x768"
EndSection
- Now, all users start the KDE session with the 1024x768 resolution.
If a user wants to define their own resolution has to launch "Display
Configuration" and create the following file in his profile:
$ cat ~/.config/kded5rc
[Module-kscreen]
autoload=true
But as Terry has stated, there is a bug and the configuration resets on reboot.
Thanks.