special keys on latop don't work

[Nelson Marambio <nelsonmarambio@xxxxxx>]

Hi, folks,

until a few days ago running GNOME I could use the special keys on my 
laptop, e.g. for volume up/down. Now nothing happens when I press one of 
these keys. Strange enough, it seems like only the volume up/down keys 
have quit their work.

Because they did their job out of the box I don't know how to 
re-acitivate them.

Does anyone have a hint for me ? The keys behave this way so in GNOME 
but also in other DEs like LXDE.

Kind regards,
Nelson.