no backlight brightness control for N220P

[Claudio]

Product: Samsung N220P (N220Plus)
Output of "dmidecode -s system-product-name": N150P/N210P/N220P

What works:
 - controlling fan, bluetooth, wlan, turning backlight completely off
 - changing the backlight manually (via "setpci")
 - the osd-notify backlight brightness thing changes when pressing the brightness up/down buttons

What does not work:
 - changing the backlight brightness via the buttons

What I have tried so far:
 - adding "|*N150P/N120P/N220P*|*N220P*" to "/lib/udev/rules.d/95-keyboard-release.rules", although I don't know if that changed anything and what it should change ;-) it's just the only place in /etc /lib/udev /usr/lib/samsung-tools /usr/bin/samsung-tools where grep found the string "N220"

What I am not sure about:
 - Is this a bug in samsung-tools anyway--or is another software responsible for it?! If yes, which one?

[Fortunato Ventre (voria)]

Take a look here:

https://bugs.launchpad.net/samsung-tools/+bug/693071