From 4c8ef3531d84beaa72b5487dfcc22ed6cdc3b249 Mon Sep 17 00:00:00 2001
From: Christian Heller <c.heller@plomlompom.de>
Date: Sun, 16 Apr 2017 06:29:43 +0200
Subject: [PATCH] Improve backlight script.

---
 bin/w530_backlight.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/bin/w530_backlight.sh b/bin/w530_backlight.sh
index e9a0c6b..5b24fa7 100755
--- a/bin/w530_backlight.sh
+++ b/bin/w530_backlight.sh
@@ -10,8 +10,8 @@ fi
 backlight_dir=/sys/class/backlight/intel_backlight
 max_brightness=$(cat "${backlight_dir}"/max_brightness)
 target="${backlight_dir}"/brightness
-fract=$(expr "${max_brightness}" / 100)
 if [ "${1}" = "+" -o "${1}" = "-" ]; then
+  fract=$(expr "${max_brightness}" / 20)
   cur_brightness=$(cat "${backlight_dir}"/brightness)
   brightness=$(expr "${cur_brightness}" "${1}" "${fract}")
   if [ "${brightness}" -gt "${max_brightness}" ]; then
@@ -26,6 +26,7 @@ percentage=${1}
 if [ "${percentage}" = '100' ]; then
   sudo sh -c 'echo '"${max_brightness}"' > '"${target}"
 else
+  fract=$(expr "${max_brightness}" / 100)
   brightness=$(expr "${percentage}" \* "${fract}")
   sudo sh -c 'echo '"${brightness}"' > '"${target}"
 fi
-- 
2.30.2