I have MBA(2016) and I fully installed Ubuntu 16.04.1 on it. I used to change brightness with my function keys. Suddenly it doesn't work now. The thing is that my keys are working, Ubuntu shows me that I dim my brightness but it doesn't change the brightness.(my backlight keys and functions are working)
$ ls -a /sys/class/backlight
. .. acpi_video0 intel_backlight
ls -a /sys/class/backlight
and add the output to your question.{}
button in the editor to format it properly.lspci -nnk | grep "VGA" -A2