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I installed a fresh Ubuntu 12.04 on my Thinkpad X200t. However, my volume mute button does not work whilst volume up and down buttons work flawlessly.

I tried to edit the shortcut key that is assigned to Volume mute in the keyboard settings [1] but the button is not recognised.

[1] http://imgur.com/c0qef

What else can I try?

Regards

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1 Answer 1

up vote 0 down vote accepted

I'm using a X200 and faced the same Problem. The reason for this malfunction is explained here.

I finally made the mute-button work by installing a patched kernel-version. It's quite easy; just add the PPA given here and update your system. That should to the trick.

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