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ubuntu使用Fn调节屏幕亮度

OS: ubuntu 12.04
NVIDIA: 319.37

笔记本在ubuntu下更新了NVIDIA显卡驱动后,Fn快捷键调节屏幕亮度的功能失效了,可以使用下面的方法重新启用:
在 /etc/X11/xorg.conf的”Device”段加入一行:

    Option   "RegistryDwords" "EnableBrightnessControl=1"

现在xorg.conf看起来可能是这样:

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    Option   "RegistryDwords" "EnableBrightnessControl=1"
EndSection

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