[tlinux-users:07613] M40X laptop hotkeys (Phoenix bios)

Hi,

I own a Satellite M40X laptop with a Phoenix bios, and cannot figure out
how to make some hotkeys work.

Using either omke.pl and omnibook kernel module (both from
http://sourceforge.net/projects/omke/ ), most of the hotkeys work (and
especially the multimedia keys at the left of the keyboard).
When I say "work", I mean they generate scandodes I can bind easily
using setkeycodes.

Other keys that do not work at all are:
* fn+Esc (volume control) 
* fn+F2 (zoom) 
* fn+F3 (suspend to ram) 
* fn+F4 (suspend to disk) 
* fn+F6 (reduce lcd brightness) 
* fn+f8 (activate/deactivate wifi chip) 

(fn+F6 and fn+F5 actually *do* reduce/lower lcd brightness level, but
only fn+F5 sends a scancode)

I cannot figure out why some keys work, some others don't.

I haven't been able to find related posts anywhere.

Do you have any ideas?

Thanks in advance for your help!

Cheers,
Julien

PS: I will send my installation/configuration notes once I fixed this
small problem.