More information about reporting bugs here.
In a nutshell, you need to create an account at launchpad first. Then, run the command:
...where <package> is the affected package. In your case, I would report it directly against the kernel:Code:ubuntu-bug <package>
Following the instructions and add the necessary information when prompted.Code:ubuntu-bug linux
Cool doing it now
I ranThe brightness changed, and I was then able to change the brightness with the Fn + brightness keys.Code:echo 500 | sudo tee /sys/class/backlight/intel_backlight/brightness
hi, i'm having the same issue since i upgrade to ubuntu 13.04. in quantal it vas corrected just by updating the GRUB with this lines
but now it doesnt make any change.
I have tried with the comand ($ grep . /sys/class/backlight/*/*) but doesnt shows me anything since the directory /sys/class/backlight/ its empty what should i do??