Special keys of my laptop work randomly
I have a problem (minor considered to others) with my laptop running FC6.
In GNOME there is a way to assign functions to the 'special keys' (FUNCTION + Key) through Keyboard Shortcuts and I have already assigned the Volume 'keys' of my laptop. The problem is that when I try to change the volume of the speakers using the 'special keys' the procedure works RANDOMLY. Sometimes I can change the volume, others I have to use the touchpad.
The question is: which one is the service (services) required by the Keyboard Shortcuts to work?
How (if it is a way to do so) can I make the Shortcuts work?
Notebook: Acer Aspire 5536-5112.
AMD Athlon X2 QL64 @ 2.1GHz, 4GB DDR2 PC2-5300, ATI Radeon HD3200 (256MB), 250GB Toshiba HDD, HL-DT-ST DVDRAM GT20N
Fedora 16 x86_64
Netbook: Acer Aspire One A150
Intel Atom N270 @ 1.6GHz, 1.5 GB DDR2 PC2-4200, Intel Graphics (8MB?), 160GB Seagate HDD
Fedora 15 i686