Re: [gpm] Mess with hardware brightness keys

[Richard Hughes <hughsient gmail com>]

On Sun, 2009-04-26 at 20:35 +0300, Maxim Levitsky wrote:
> I am owner of an notebook which has hardware brightness keys, and this
> is what happens when I press brightness up/down key:
> 1 - hardware changes the brightness
> 2 - in kernel acpi driver changes the brightness - can be disabled 
> (brightness_switch_enabled=0)
> 3 - acpi driver sends a brightness/up down event using its own event
> device - gpm sees this and again changes the brightness
> 4 - keyboard also generates brightness up/down events - gpm again
> changes brightness.

You can either add brightness_switch_enabled=0 to modprobe.conf, or add
the brightness_in_hardware hal key to the fdi file for your machine.

I would be interested to the make and model of your laptop -- it sounds
pretty pathological.

Richard.