The controls still don't work in my Dell Inspiron 15R with Raring. However, I can change the brightness by running this command in the terminal: echo XXX > /sys/class/backlight/intel_backlight/brightness
The controls still don't work in my Dell Inspiron 15R with Raring. backlight/ intel_backlight /brightness
However, I can change the brightness by running this command in the terminal:
echo XXX > /sys/class/