Index: scripts/brightness_set.sh
===================================================================
diff -u -r23bf46e34d0a6b72b8d0187812a4d3c26170ca6c -rad907b832d0e8afc55598cfb07eab263b28f2dc0
--- scripts/brightness_set.sh	(.../brightness_set.sh)	(revision 23bf46e34d0a6b72b8d0187812a4d3c26170ca6c)
+++ scripts/brightness_set.sh	(.../brightness_set.sh)	(revision ad907b832d0e8afc55598cfb07eab263b28f2dc0)
@@ -15,12 +15,5 @@
 #
 ############################################################################
 
-if [ "$#" -eq 0 ]; then
-    currentFile=$(basename "$0")
-    echo "Usage: ./$currentFile '<brightness>'"
-    exit 0
-fi
-
-echo "$1" | sudo tee /sys/class/backlight/lvds_backlight/brightness > /dev/null                                     # realtime
-echo "$1" | sudo tee /var/lib/systemd/backlight/platform-lvds_backlight\:backlight\:lvds_backlight > /dev/null      # preserve for reboot
-
+echo "$(( $1 * 10 ))" > /sys/class/backlight/lvds_backlight/brightness
+exit 0