[gpm] Brightness control in Acer laptops

["Michał Majchrowicz" <mmajchrowicz gmail com>]

Hi.
I spent some time on finding a way to control brightness of my laptop
in software way. Fortunately acer_acpi (with some tweaks) add this
support to my computer. I can now set brightnes trough
/proc/acpi/acer/brightness interface. But
gnome-power-manager/brightness-applet is unable to detect that I have
a software way of controlong brightness:( How can I fix it?
Regards Michal.