Integrovaná Intel HD graphics - nastavení jasu obrazovky

Otestováno na Packard Bell EasyNote TK s i3 a integrovanou Intel HD Graphics.

nano /bin/br

#!/bin/bash
# wrapper script to change brightness values
# make script executable

# constants - edit as required
UPPER=970
LOWER=0
INCREMENT=100
DECREMENT=100

# current value
CURRENT=`cat /sys/class/backlight/intel_backlight/brightness`
NEW=$CURRENT

echo " $CURRENT $NEW "

case $1 in
        up)
                if [ $(($CURRENT+$INCREMENT)) -le $UPPER ]; then
                        NEW=$(($CURRENT+$INCREMENT))
                else
                        NEW=$UPPER
                fi
        ;;
        down)
                if [ $(($CURRENT-$DECREMENT)) -ge $LOWER ]; then
                        NEW=$(($CURRENT-$DECREMENT))
                else
                        NEW=$LOWER
                fi
        ;;
        *)
        ;;
esac

# set the new brightness value 
echo $NEW > /sys/class/backlight/intel_backlight/brightness

exit 0

chmod +x /bin/br

nano /etc/rc.local

# Povoleni zmeny jasu vsem uzivatelum
chmod 777 /sys/class/backlight/intel_backlight/brightness
# Nastaveni vychoziho jasu pri startu
echo 500 > /sys/class/backlight/intel_backlight/brightness

Autor: