Switching to XDM fails in Kubuntu (and a workaround)

The problem: The first time I tried switching from Kubuntu's default (I think it was LightDM) to X Display Manager it just failed to load, with the Plymouth splash screen being stuck in front. It was a fresh install, so not having anything to lose, I re-installed the whole system again. The worka

Control monitor to be used

Hello, I am sure there has been lot of forums with similar question. I couldn't find answer for what I am trying to do. I have one external monitor connected to laptop using VGA.The setup works fine as an extended monitor. I want to control the monitor application's graphical interface is st