Ubuntu 12.04 LTS不能自动保存亮度:每次登陆、解锁后,都是最大亮度,非常讨厌!
1、打开终端,输入命令查看本机支持的最大亮度值
cat /sys/class/backlight/acpi_video0/max_brightness
我的笔记本支持最大亮度为20
kashu@ubuntu:~$ cat /sys/class/backlight/acpi_video0/max_brightness
20
2、编辑这个文件
sudo gedit /etc/rc.local
打开后你会看到如下内容:
#!/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. #exit 0
插入这句话到代码中:
echo 16 > /sys/class/backlight/acpi_video0/brightness
就像我下面的一样:
kashu@ubuntu:~$ cat /etc/rc.local
#!/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 15 > /sys/class/backlight/acpi_video0/brightness exit 0
其中echo 后面的值为0-20,对应为0到100%,如echo 10表示一半亮度
转载自:http://linzhibin824.blog.163.com/blog/static/7355771020133532038651/