[Bug 35170] ACPI brightness, volume (everything) won't work in Dapper (Panasonic CF-Y4)

[Mante]

Public bug reported:
https://launchpad.net/malone/bugs/35170

Affects: linux-source-2.6.15 (Ubuntu)
       Severity: Major
       Priority: (none set)
         Status: Unconfirmed

Description:
I am using Panasonic Let'S Note CF-Y4.

As report in the summary, all the ACPI functions as volume control,
brightness control, hybernate ecc... don't work in Dapper. With Breezy
everything except the video output selection was ok, when selecting
volume up and down gnome displayed a good designed indicator too.
Changing brightness values from console with a sort of "echo n >
/proc/acpi/..."  works so probably is the key mapping to (function)+key
number that is broken.