laptop multi monitor configuration

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http://forums.opensuse.org – i've found a way around what i want todo; xrandr command in a script file. however, that doesnt really fix it fully and is a fairly buggy solution the issue: laptop obviously has it's own LCD monitor (1280x800). i have a 22" (1680x1050) external monitor connected via the docking station. i plug the laptop onto docking station and it automatically switches to 1024x768, clone view- something along the lines of a standard resolution for a projector maybe? what i want to happen: connect laptop onto docking station, and it automatically (Distributions)