[ubuntu] asus k55vm backlight almost working

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http://ubuntuforums.org – So my problem is Fn keys and back-light. I already search and tried allot of fixes, but none solved the problem entirely. I got asus-wmi/ asus-nb-wmi , module loaded and that creates a /sys/class/backlight/asus-nb-wmi/ and all those files inside editing brightness file don't take effect on that session, but if i reboot my laptop it loads with the value of brightness file. (i'm thinking, maybe when i change brightness file value it stores on bios, then when i reboot it loads bios values, and then it load the modules and create the files...) xev is not reporting fnkeys running ubuntu (Hardware)