It’s maddening. For someone who is trying make a daily use of what is to be considered a beginner friendly distribution for the first time, most options leave a lot to be desired for the uninitiated. More often than not, new Linux users find that everything works great at first only to discover that setting up something as common as a dual-head monitor configuration requires editing your xorg.conf file. If you are coming from a non-Linux environment, this can be a fairly frightening proposition.

Source: The Importance of Video Settings on Linux