I did some research. According to this original Ubuntu bug report:

https://bugs.launchpad.net/ubuntu/+source/hal/+bug/76593

the event is specified as

event=hotkey ATKD 0000001[123456789abcdef]

because other Asus laptops specify the actual brightness with the last
number. So, we can't just take 1 out of the list. Could you show me the
output of:

cat /var/lib/acpi-support/system-manufacturer
cat /var/lib/acpi-support/system-product-name

This will give me the info on your machine, so that I can build an exception.

Furthermore, I'm not sure what the exceptional code should do. According
to the Ubuntu bug report, the current Asus brightness support relies on
the hardware to change the brightness, and only registers the keys in
order to let gnome-power-manager display the brightness level in a pop-up
window.

Just checking: you're saying the brightness doesn't change when you press
the brightness up/down keys? Could you check what happens if you run the
following commands:

acpi_fakekey 224
acpi_fakekey 225

The first command *might* decrease brightness, the second command *might*
increase it. If it doesn't, we (and by we I mean you or somebody else with
an Eee who wants this fixed) have to find something else that works.

Cheers,
Bart


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