[Trisquel-users] Thinkpad X200 volume keys not working Trisquel Mini

[fruitymudskipper]

Volume up and down don't change the volume but will unmute if computer is  
muted, other strange behaviour is the mute button will mute but not unmute. I  
have tried installing TPB and running this command as sudo:

sudo bash -c echo enable,0xffffffff > /proc/acpi/ibm/hotkey
No luck so far!

Using a Librebooted Thinkpad X200.