问题
我安装了xbacklight
,希望用它控制亮度,尝试更改亮度时,提示" No outputs have backlight property".
System: Kernel: 3.16.0-57-generic x86_64 (64 bit, gcc: 4.8.2)
Desktop: LXDE (Openbox 3.5.2) Distro: Ubuntu 14.04 trusty
Machine: HP EliteBook 8460p
CPU: Dual core Intel Core i5-2520M CPU
Graphics: Advanced Micro Devices [AMD/ATI] Seymour [Radeon HD 6400M/7400M Series]
答案1
完全正常,要查找背光设置的目录,请执行以下操作:
sudo find /sys/ -type f -iname '*brightness*'
输出应该提供如下内容:
/sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-LVDS-1/intel_backlight/brightness
现在,你只需要把它链接到/sys/class/backlight
,要这样做:
sudo ln -s /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-LVDS-1/intel_backlight /sys/class/backlight
如果仍然得到错误,就执行以下操作:
创建文件xorg.conf
:
sudo nano /etc/X11/xorg.conf
,并添加以下行:
Section"Device"
Identifier"Card0"
Driver"intel"
Option"Backlight""NAME OF THE FOLDER"
EndSection
然后,保存文件do:Ctrl+X,然后Y,然后按Enter键。
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