RE: Adjust Keyboard Backlight Timeout. Please try some of the troubleshooting steps in the link below. It isn't the same computer (XPS 9500) but it might work for you as well. XPS 15 9550 Keyboard Backlight Timeout. Subscribe to RSS Feed. Email to a Friend. Report Inappropriate Content. Press the ROG button to open the ROG gaming center. In the bottom left there is an area that says ROG Aura Core. Click that and it will take you to the backlight settings. Open up the 'ROG Aura Core' program and you can customize the keyboard backlight.
Configure the keyboard backlight on ASUS laptops.
NOTE: This is the new repository of ASUS Keyboard Backlight that used to be hosted on Launchpad: https://launchpad.net/asus-keyboard-backlight
Dependencies
- Python
- ACPI Daemon
(optional) pyNotifythis is not required anymore as the code thatuses this works with an old Xorg and GDM
Installing ASUS Keyboard Backlight
Run the following command as root from the project root directory:
Uninstalling ASUS Keyboard Backlight
Run the following command as root from the project root directory:
Changelog
- 2017-05-08:
- Project imported to Github
- README rewrote
- License changed from GPLv3+ to WTFPL
This guide is split up into two sections, one for laptop manufacturers like Dell which have a built-in file for timeout (which can be edited to set up the timeout), and manufacturers like Asus,which need a bit of bash scripting to achieve the same.
On Dell Laptops
You’ve lucked out if you have a Dell machine, setting the timeout is relatively simple on most of their models. Their timeout values are stored in a file; editing the file should be sufficient.
- Navigate to the directory containing the file.
NOTE: If you don’t have such a file (and you’re using Dell), then search around in
/sys/devices
for a similar folder. If you searched and still can’t find it, follow the instructions in the next section. - Open the
stop_timeout
file in a your text editor. - Write your desired timeout value in seconds with a
s
for “second” after that. (ex.30s
for 30 seconds)NOTE: For values over 1 minute, place am
for “minute” after the value. (ex.2m
for 2 minutes.)
For all other Laptops (including Asus)
Though a file for setting the timeout doesn’t exist in most laptops, there would a file to display the current brightness level. Our first step is to poke around our /sys/
directory and find such a file.
In my Asus machine, it is at /sys/class/leds/asus::kbd_backlight/brightness
. Checking the contents of this file should give you the current brightness level of your keyboard.
This should show a value (0,1,2,3,etc.) depending on the brightness levels of your keyboard. Now, editing this file with a new value should change the brightness.
NOTE: Editing this file requires superuser priviledges; you need to run it through the /bin/sh -c
command like so:
This above line should make your backlight dark. This means that our approach is working. The next step is to create a script that automates this procedure everytime your keyboard is idle for x
amount of seconds.
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- Install
xprintidle
through your package manager.
Ubuntu:Arch Linux:
- Store the following bash code into a file in your home directory as a file called
kbd_idle
. Edit thex
on line 4 with the desired timeout. Edit the/sys/
file too, if it differs. - Make this file executable.
- Now, we have to create a
systemctl
service unit that can run this script in the background each time our computer starts. Save the following code in/etc/systemd/system
askbd_idle.service
- Start this system unit and enable it.
This is probably a inefficient way to do it actually, but it works. If anyone has a better method, let me know.