-更改显卡配置文件

在目录 /usr/share/X11/xorg.conf.d 下新建配置文件 10-nvidia.conf，添加如下内容:

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

-更改grub启动参数，打开/etc/default下的grub文件

将

GRUB_CMDLINE_LINUX=""

改为

GRUB_CMDLINE_LINUX="acpi_backlight=vendor"

-更新grub启动菜单

update-grub

-重启