2018-04-03 13:55:41 +00:00
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#!/bin/bash
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# Don't start a new transition if the previous one isn't done yet
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pgrep -u $UID -x xbacklight >/dev/null && exit
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# Calculate new target brightness
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current_brightness=$(xbacklight -get)
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case $1 in
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up)
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target=$((current_brightness * 15 / 10))
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[ $target -ne $current_brightness ] || target=$((target + 1))
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;;
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down)
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target=$((current_brightness * 10 / 15))
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[ $target -ne $current_brightness ] || target=$((target - 1))
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;;
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esac
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# Boundaries: can't go higher than 100% or lower than 1%
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[ $target -le 1 ] && target=1
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[ $target -ge 100 ] && target=100
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# Smoothly set the new brightness
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2018-04-29 14:55:37 +00:00
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xbacklight -time 100 -fps 60 -set $target
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