1、$ cd /sys/class/backlight/
2、$ ll,有:
total 0
drwxr-xr-x 2 root root 0 8月 28 2015 ./
drwxr-xr-x 55 root root 0 8月 28 2015 ../
lrwxrwxrwx 1 root root 0 8月 28 11:18 acpi_video0 -> ../../devices/pci0000:00/0000:00:01.0/0000:01:00.0/backlight/acpi_video0/
lrwxrwxrwx 1 root root 0 8月 28 11:18 radeon_bl0 -> ../../devices/pci0000:00/0000:00:01.0/0000:01:00.0/drm/card0/card0-LVDS-1/radeon_bl0/
3、$ cd acpi_video0(根据backlight关键字)
4、$ cat max_brightness,得10;$ cat brightness,得2
5、所以最大亮度是10,现在亮度是2
6、$ cd /etc/,sudo gedit rc.local,在末尾加上一句:
echo 2 > /sys/class/backlight/acpi_video0/brightness
重启,即可。
如何在Linux上自动调整屏幕亮度保护眼睛:http://www.linuxdiyf.com/linux/13835.html
Ubuntu调节屏幕亮度:http://www.linuxdiyf.com/linux/13163.html
Linux下调节屏幕亮度(Intel核显):http://www.linuxdiyf.com/linux/4265.html
Ubuntu 12.10调节屏幕亮度经验分享:http://www.linuxdiyf.com/linux/1417.html
Ubuntu调节屏幕亮度Linux命令:http://www.linuxdiyf.com/linux/795.html