麦克风指示灯无缘无故亮起。我重启电脑后它突然亮起。我该如何再次关闭它?
- 笔记本电脑:HP probook 650
- Ubuntu 版本:Ubuntu 15.10
- 桌面环境:Gnome 3.x
输出:ls -l /sys/class/led
lrwxrwxrwx 1 root root 0 Mar 7 16:36 hp::hddprotect -> ../../devices/virtual/leds/hp::hddprotect
lrwxrwxrwx 1 root root 0 Mar 7 16:36 input3::capslock -> ../../devices/platform/i8042/serio0/input/input3/input3::capslock
lrwxrwxrwx 1 root root 0 Mar 7 16:36 input3::numlock -> ../../devices/platform/i8042/serio0/input/input3/input3::numlock
lrwxrwxrwx 1 root root 0 Mar 7 16:36 input3::scrolllock -> ../../devices/platform/i8042/serio0/input/input3/input3::scrolllock
lrwxrwxrwx 1 root root 0 Mar 7 16:36 phy0-led -> ../../devices/pci0000:00/0000:00:1c.6/0000:03:00.0/leds/phy0-led
笔记:
我尝试使用相应文件夹中的命令关闭每个设备
echo 0 > brightness
。结果发现没有一个设备是我键盘上的 LED 灯烧坏了。