Comment 31 for bug 212800

so finaly i was able to fix somthing in backtrack 5 r3 on Samsung N150 netbook , actually its a fix for all ubuntu users , its the backlight issue which is really irritating kept searching it for 2 months with no hope until 30 minutes ago , it took 4 hours of searching and reading , linux has issues with Samsung ACPI , my netbook has intel 3150 GPU it installs the driver perfectly but you will not be able to control the brightness , there was a fix provided by "voRia" called "samsung-backlight" , claiming to fix the problem on ubuntu 9.04 and 10.04(which back track is based on) , still didnt fix it , so my fix is going to the terminal and writing the following command:
echo 4 > /sys/class/backlight/samsung/brightness ..... as the number determines the level of brightness and it was from 0 to 8 levels , i tried to put it in the panel as launcher but it only works in terminal , i wish if someone could tell me how to assign a command to a keyboard , like if i can assign it to the brightness shortcut key on my netbook that originally was made for windows acpi brighntess control , also i noticed if i removed the intel driver and rebooted the brightness control works natively with FN keys but when i bring back the driver it doesnt , so im guessing its a problem in the driver it self ,finally i want to say im not an expert in linux and i thought this might be a contribution