调节亮度 ios
sudo vim /etc/X11/xorg.conf vim
加一句:Option "RegistryDwords" "EnableBrightnessControl=1" ide
保存亮度 ui
一、解决reboot后没法保存屏幕亮度: this
sudo gedit /etc/rc.local google
插入这句话到代码中: spa
echo 0 > /sys/class/backlight/acpi_video0/brightness ip
以下: it
#!/bin/sh -e io
#
# 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 0 > /sys/class/backlight/acpi_video0/brightness
exit 0
其中echo 后面的值为0-10,对应为0到100%,如echo 5表示一半亮度
保存后退出,重启就能够了。
注意:大多数人都是acpi_video0,根据本身/sys/class/backlight/下面文件决定
二、亮度调节
亮度调节依赖与你的bios和内核版本,你能够尝试如下代码:
kernel boot选项:
当你启动系统时,出如今grup的屏幕时,按e键进行编辑,在kernel这一行添加:
nomodeset acpi_backlight=vendor
Intel - nomodeset acpi_backlight=intel Acer - acpi_backlight=acer_acpi or even acpi_osi=Linux acpi_backlight=legacy.
quiet splash nomodeset acpi_backlight=vendor
# command line
sudo -e /etc/default/grub
# graphical
gksu gedit /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset acpi_backlight=vendor"