dmidecode not working on a macbook 2,1 (Debian squeeze/amd64)

[Benoit FREMON]

Hi,

After installing Debian Squeeze AMD64 on a macbook 2,1, I can't get 
dmidecode to work :

# dmesg | grep DMI
[    0.000000] DMI not present or invalid.

dmidecode is needed eg by pommed, a daemon used on macbooks under linux 
for controlling screen brightness.

I have not found any solutions to this problem, and I think it's grub 
related.

I'm booting using refit, which chainloads grub2 with the following 
grub.cfg config :

fakebios
search --set /vmlinuz
linux /vmlinuz noefi acpi=force video=efifb root=/dev/sda3
initrd /initrd.img

I tried to remove the acpi option, to boot with noacpi, and the problem 
is still there.
Removing the fakebios option disable keyboard input.

Is there any solution to this problem ?

Thanks in advance for your suggestions.

-ben

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Site oueb: http://in.volution.fr/~ben/