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ubuntuでモニターの輝度を起動時に下げる

Last updated at Posted at 2014-06-29

ノートパソコンにインストールすると輝度が初期化されてしまうようです。

まず任意の明るさにバックライトの明るさを設定します。
設定したら現在の明るさの数値を確認します。

 cat /sys/class/backlight/acpi_video1/brightness 

rc.localを編集します

sudo vim /etc/rc.local

echo ユーザ定義 > /sys/class/backlight/acpi_video1/brightnessをexit0の上の行に追記します
ユーザ定義には明るさの値を入力します

#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.
echo ユーザ定義 > /sys/class/backlight/acpi_video1/brightness
exit 0

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