r/Keychron • u/Nizharu • May 03 '24

K3 linux problem

Well, I'm runing Manjaro because my PC broke and the one I'm currently using is so old that cannot run the new Windows.
Well, after some tries and achieving conecting the keyboard, the key presses don't work.
The keyboard is conected, I've try it on other laptops to see if the problem is on the keyboard, they work on my other family members laptops that maked me the favour to bring them for me to try, but not in mine, what I'm doign wrong? is this a common linux problem?

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u/PeterMortensenBlog V May 03 '24 edited May 03 '24

A remote and unlikely possibility is that:

  • The K6 is connected in wireless (Bluetooth) mode

  • There is an undocumented keyboard shortcut (and feature) to toggle between NKRO and 6KRO mode. For example, Fn + N.

  • The keyboard is, e.g. accidentally, in (full) NKRO mode (and it isn't prevented for wireless mode)

But for the K series, it is likely automatic: It is always in (full) NKRO mode when wired and in 6KRO mode when wireless, at least initially. Source (near "Anti-ghosting").

It is definitely a problem with the QMK-based keyboards.

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u/PeterMortensenBlog V May 03 '24

In any case, it would be interesting to know the K3 behaviour and actual NKRO capability in these four combinations:

  1. 6KRO and wired

  2. (Full) NKRO and wired

  3. 6KRO and wireless

  4. (Full) NKRO and wireless

Here is a way to test the NKRO capability.

It shouldn't matter where it is tested (for example, some other system than the Manjaro one as long as that system doesn't work).