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I got a Logitech G413 SE keyboard. Its keys are lit when I plug it in; I want to turn that light off; but - there is no "lights off" switch on it! Damn them.

Logitech has all sorts of software to do this on Windows. But - how can I turn off the lights on a Linux system?

I'd prefer something that can work even from the command-line, but even a closed-source GUI utility is better than nothing...

My distribution: Devuan GNU/Linux Daedalus.

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  • openrgb may be able to help
    – Jaromanda X
    Commented Dec 12, 2022 at 23:53

1 Answer 1

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You can control your keyboard’s LEDs using g810-led. It’s available as the g810-led package in Debian, I don’t know about Devuan.

On my G610,

g610-led -a 0

switches the LEDs off; presumably something similar will work using g413-led on your keyboard.

You may need to run this as root.

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  • g810-led needs udev to work out-of-the-box, which is why I wasn’t sure how well it would work in Devuan. If you run it as root it should work in any case.
    – Stephen Kitt
    Commented Dec 13, 2022 at 7:54
  • I am running as root, but - what do I do with it?
    – einpoklum
    Commented Dec 13, 2022 at 16:45
  • What have you tried?
    – Stephen Kitt
    Commented Dec 13, 2022 at 17:45
  • 1. You're supposed to provide an answer, not quiz me about a utility you mentioned... 2. g810-led --print-device gives Matching or compatible device not found. g810-led -dv 046d -dp c349 -tuk 1 -a 000000 gives Error: Can not write to hidraw, try with the libusb version but I think that might just be bad syntax.
    – einpoklum
    Commented Dec 13, 2022 at 21:50
  • Since I don’t have your keyboard, I can’t give you a complete answer without your help. I showed you what works for me, and told you what command to use; but presumably that doesn’t work for you. I have an idea of what might be causing the hidraw errors, but I can’t check right now.
    – Stephen Kitt
    Commented Dec 13, 2022 at 22:09

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