Disable hardware volume or at least prevent the UI from freezing (Fujitsu Amilo Xi 3670)

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http://askubuntu.com – I've had this problem for quite a long time, as in I had it on Lucid and maybe the one before, then didn't use this particular laptop for a year or so, and now I'm trying 12.04 on it. Above the keyboard it has this fancy touch volume control that you can slide your finger on and that works. Problem is, at random intervals (and way too often) it starts to move the volume up and down again and again and again really really quickly, which makes it pop and of course destroys any music experience, and also the popup flickers epileptically in the top right corner. :) Usually it's possible to get it (HowTos)