Difference between revisions of "HowTo Adjust The Keyboard Backlight Brightness On A Laptop In Console Mode Using The Command Line"
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lrwxrwxrwx 1 root root 0 Sep 21 20:24 platform::micmute -> ../../devices/platform/dell-laptop/leds/platform::micmute | lrwxrwxrwx 1 root root 0 Sep 21 20:24 platform::micmute -> ../../devices/platform/dell-laptop/leds/platform::micmute | ||
[root@dell7480 ~]# | [root@dell7480 ~]# | ||
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This backlight brightness display settings can be found and controlled in the '''[https://en.wikipedia.org/wiki/Sysfs sysfs]''' pseudo file system provided by the Linux kernel within the following directory: | This backlight brightness display settings can be found and controlled in the '''[https://en.wikipedia.org/wiki/Sysfs sysfs]''' pseudo file system provided by the Linux kernel within the following directory: | ||
Revision as of 20:28, 21 September 2021
Overview
This page demonstrates how one can adjust the keyboard backlight brightness on a laptop computer running NST using the command line. 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.
Adjust The Keyboard Backlight Brightness Using the Command Line
First the keyboard backlight directory needs to be discovered for the laptop manufacturer. List the following directory to determine:
[root@dell7480 ~]# ls -al /sys/class/leds/ total 0 drwxr-xr-x 2 root root 0 Sep 21 05:22 . drwxr-xr-x 77 root root 0 Sep 21 05:22 .. lrwxrwxrwx 1 root root 0 Sep 21 09:22 dell::kbd_backlight -> ../../devices/platform/dell-laptop/leds/dell::kbd_backlight lrwxrwxrwx 1 root root 0 Sep 21 05:22 input4::capslock -> ../../devices/platform/i8042/serio0/input/input4/input4::capslock lrwxrwxrwx 1 root root 0 Sep 21 05:22 input4::numlock -> ../../devices/platform/i8042/serio0/input/input4/input4::numlock lrwxrwxrwx 1 root root 0 Sep 21 05:22 input4::scrolllock -> ../../devices/platform/i8042/serio0/input/input4/input4::scrolllock lrwxrwxrwx 1 root root 0 Sep 21 20:24 phy0-led -> ../../devices/pci0000:00/0000:00:1c.2/0000:02:00.0/leds/phy0-led lrwxrwxrwx 1 root root 0 Sep 21 20:24 platform::micmute -> ../../devices/platform/dell-laptop/leds/platform::micmute [root@dell7480 ~]#
This backlight brightness display settings can be found and controlled in the sysfs pseudo file system provided by the Linux kernel within the following directory:
