When I want to connect a second monitor or projector to my computer, I always have to change display settins, like seperate x screens configuration, and save and logout to apply new settings. It is really anoying. For example, if I configure my display settings for only use external monitor and save it and then unplug the external monitor, Ubuntu does not understand that I unpluged it and it is continues to send display to external monitor. So in order to change my display setting I have to plugin external monitor again. Is there a work around for this problem?
Anything that modifies
However, depending on your video card, you may be able to work around this issue by using one of your video card manufacturer's utilities. Nvidia, for example, ships a GUI configuration tool with its driver that allows you to add, remove, and modify the geometry of displays without restarting the X server (the tool also provides the option of permanently saving the changes to
Something to consider down the road: X is eventually being replaced by Wayland which will (hopefully) be much easier to configure than X and offer the ability to add or remove displays while running.