[ubuntu] Use the DPI buttons on Logitech MX518 as normal buttons

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http://ubuntuforums.org – The MX518 has two "special" buttons on either end of the scroll wheel that change the dpi setting of the mouse on the fly. If you run xev, these two buttons don't register as input at all. Their dpi feature works perfectly well in Ubuntu, but frankly it's not a very useful, and I want to use them as normal buttons, like I do in Windows. I've checked many solutions, and there seems to be only one that will work: HiDPoint. Lomoco has the correct feature but doesn't support the MX518. It sounds like perhaps (I don't know) the evdev driver would make it happen, but I wasn't able to get (Hardware)