![]() r-r-r- 1 root root 4096 Sep 21 09:22 max_brightnessĭrwxr-xr-x 2 root root 0 Sep 21 20:35 power Lrwxrwxrwx 1 root root 0 Sep 21 20:35 device ->. r-r-r- 1 root root 4096 Sep 21 09:22 brightness_hw_changed Lrwxrwxrwx 1 root root 0 Sep 21 20:24 platform::micmute -> ~]#įrom above, directory " /sys/class/leds/dell::kbd_backlight" contains the keyboard backlight brightness settings for the Dell ~]# ls -al /sys/class/leds/dell::kbd_backlight/ Lrwxrwxrwx 1 root root 0 Sep 21 20:24 phy0-led ->. /devices/platform/i8042/serio0/input/input4/input4::scrolllock Lrwxrwxrwx 1 root root 0 Sep 21 05:22 input4::scrolllock ->. /devices/platform/i8042/serio0/input/input4/input4::numlock /devices/platform/i8042/serio0/input/input4/input4::capslock lrwxrwxrwx 1 root root 0 Sep 21 05:22 input4::numlock ->. Lrwxrwxrwx 1 root root 0 Sep 21 05:22 input4::capslock ->. Lrwxrwxrwx 1 root root 0 Sep 21 09:22 dell::kbd_backlight ->. The following output is from NST running on a Dell 7480 ~]# ls -al /sys/class/leds/ĭrwxr-xr-x 77 root root 0 Sep 21 05:22. Listing the following directory will help determine the location. ![]() First the keyboard backlight directory needs to be discovered for the laptop manufacturer. This backlight brightness settings can be found and controlled in a sysfs pseudo file system provided by the Linux kernel. It may be desirable to completely set the brightness value to the lowest possible setting to increase the time that an NST server is running on battery power.Īdjust The Keyboard Backlight Brightness Using the Command Line ![]() This page demonstrates how one can adjust the keyboard backlight brightness on a laptop computer running NST using the command line.
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