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Phones and tablets behaves differently from ubuntu on desktop. So this is why mir can not be found the same way however the system with Ubuntu Touch Saucy Salamander does run on Mir. There isn't any Unity-system-compositor running on my system. I do see unity8 and lightdm running.

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marked as duplicate by Braiam, minerz029, BuZZ-dEE, Flimm, Alvar Jan 2 '14 at 15:43

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

On a phone or tablet, run ps aux | grep SurfaceFlinger, and if you don't see a process by that name then you're running Mir

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