On  09.01.10 18:09:1, Matthew Garrett wrote:
> What do you mean by "work"? 
By "work" I mean the change the backlight brightness
> Do you get any ACPI interrupts when you hit 
> the keys without the override parameter?

Nope, neither with nor without acpi_osi="!Windows 2006", there is nothing in dmesg, no output in acpi_listen and no event in xev.
I've compared the ACPI messages in dmesg with and without the parameter, the only change is the rather obvious 
ACPI: Deleted _OSI(Windows 2006)

I've attached the 'normal' dmesg output as well as the diff to the output with the acpi_osi parameter set
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