How to change keyboard backlight color

1

Hello Sir, kindly need your help, how do i change keyboard backlight color on my tensorbook computer, instead of constant blue color.
I thank you in advance for response…

Maker

2

Hi Maker, in older BIOS versions you can change it without installing additional software. Currently in Linux it is stuck at the constant blue color.

3

Does this mean you can install additional software to change the color? One time, I was able to change the color but it has not worked since then.

4

On Ubuntu, try changing the GRUB_CMDLINE_LINUX_DEFAULT line in /etc/default/grub to:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_os_name=Linux acpi_osi=! acpi_osi=Linux acpi_backlight=vendor modprobe.blacklist=nouveau"

This should enable the keyboard backlight key combinations (Fn /, Fn *, Fn -, Fn +).

Edit: Don’t forget to sudo update-grub and reboot after editing the file.

1 Like
5

This worked for me! I’m on Ubuntu 18.04 LTS.

Now to see if we can get the full RGB customizations…

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6

Though I did get the keyboard backlights to work by ACPI kernel parameters as Harenbrs suggested, I was no longer able to “resume from suspend” without a hard reboot.

I compiled and installed the “tuxedo-keyboard” kernel module:

git clone https://github.com/tuxedocomputers/tuxedo-keyboard
cd tuxedo-keyboard
make && sudo make dkmsinstall
sudo modprobe tuxedo_keyboard

I was then able to control the keyboard LEDs via the Fn key combos,
and was also able to control it with plain text!

while true; do for c in 0x{FF0000,FFFFFF,0000FF}; do
	echo $c | sudo tee /sys/devices/platform/tuxedo_keyboard/color* >/dev/null; sleep 0.2;
done; done