Well I have to admit that not all of my Asus UL80V function keys work on Linux. Among them are the brightness adjustment buttons. Well it's not a problem to adjust the brightness on linux anyway, I remember there was a possibility to set it manually in:
/proc/acpi/video/VGA/LCD/brightness
Sadly I failed to find the file on my current distribution (Mint 13 / Maya, based on Ubuntu 12). I made some research and searching and managed to locate another file responsible for the backlight brightness setting:
/sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/backlight/acpi_video0/brightness
The brightness may be set the following way:
sudo echo "15" > /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/backlight/acpi_video0/brightness
This works, but is a little bit inconvenient. Now I need to find a way do bind this with the brightness increase/decrease buttons, which may be tricky since they don't appear in /dev/input/ events (or at least I haven't found a suitable event yet).
Cheers!
KR
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