无法更改屏幕亮度

无法更改屏幕亮度

我有一台 Alienware r3 15 笔记本电脑,最近在其中安装了 Ubuntu 17.10(与 Windows 10 双启动)。到目前为止,一切都很好,只是我找不到任何设置(如果有的话)来更改亮度。系统菜单中没有亮度滑块,也没有任何东西可以在“设置”中更改亮度。我尝试通过以下方式安装亮度更改器指示器:

sudo add-apt-repository ppa:indicator-brightness/ppa
sudo apt update
sudo apt install indicator-brightness

但它说我的系统上没有找到背光。我尝试从命令行更改背光:

sudo echo 100 | sudo tee /sys/class/backlight/*/brightness
tee: '/sys/class/backlight/*/brightness': No such file or directory 100

请帮忙。我的终端上的输出sudo lshw -C display是:

*-display 
   description: VGA compatible controller
   product: GP106M [GeForce GTX 1060 Mobile]
   vendor: NVIDIA Corporation
   physical id: 0
   bus info: pci@0000:01:00.0
   version: a1
   width: 64 bits
   clock: 33MHz
   capabilities: pm msi pciexpress vga_controller bus_master cap_list rom
   configuration: driver=nouveau latency=0
   resources: irq:125 memory:dc000000-dcffffff memory:b0000000-bfffffff memory:c0000000-c1ffffff ioport:e000(size=128) memory:c0000-dffff
*-display
   description: Display controller
   product: Intel Corporation
   vendor: Intel Corporation
   physical id: 2
   bus info: pci@0000:00:02.0
   version: 04
   width: 64 bits
   clock: 33MHz
   capabilities: pciexpress msi pm bus_master cap_list
   configuration: driver=i915 latency=0
   resources: irq:126 memory:db000000-dbffffff memory:70000000-7fffffff ioport:f000(size=64)

答案1

您可以安装亮度变换器指示灯:

sudo add-apt-repository ppa:indicator-brightness/ppa
sudo apt update
sudo apt install indicator-brightness

启动后它会显示在你的面板上。单击它并选择所需的值。

另一种方法是:

echo 1000 | sudo tee /sys/class/backlight/*/brightness

将 1000 更改为所需值

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