On startup, the saved configuration is not loaded. I have two monitors, a Dell and an Acer with different resolutions. Until the sddm login, the two monitors are cloned. But when I start my KDE session (I'm using now Kubuntu Vivid Vervet, but It behaves the same from the beginning of using kscreen), the Dell monitor takes its full resolution (as configured in kscreen) and the Acer gets blank (no signal). Every time I have to enter in the kscreen and enable the Acer monitor and configure it properly. Reproducible: Always Steps to Reproduce: 1. Starts the session. Actual Results: The Acer monitor is disconnected (no signal) Expected Results: The Acer monitor should change its resolution to the values set in the last time kscreen was configured.
I have the same problem. I use two monitors: an older LG (VGA) and a new Benq (HDMI), both connected to the onboard cargs (intel HD4000). I have it working right now, but not using kscreen at all and configuring the two monitors in xorg: My /etc/X11/xorg.conf.d/20-monitors.conf: Section "Monitor" Identifier "HDMI1" Option "Primary" "true" EndSection Section "Monitor" Identifier "VGA1" Option "RightOf" "HDMI1" EndSection Then i had to disable KScreen 2 service in System Settings- > Startup and Shutdown -> Service Manager.
Finally, I'm using xrandr to do the job (arandr can create scripts that use xrandr to change the screen setup).
*** This bug has been marked as a duplicate of bug 346961 ***