backlight Lenovo T430 – debian – 3.16-2-amd64

Backlight keys are no longer working since last upgrade.

ugly workaround:

root@fvaras:/home/fvaras# cat /sys/class/backlight/intel_backlight/brightness 
4437
root@fvaras:/home/fvaras# echo 2000 > /sys/class/backlight/intel_backlight/brightness 

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