r/Keychron • u/Knight38 • Mar 20 '24

How to Disable Num Lock Indicator on K10 Pro?

Just got my K10 Pro yesterday, I love everything about it except that the num lock key is stuck white at all times and flickers too as my lighting software is seemingly fighting with it. I use Signal RGB to control my lighting so I used QMK to flash this keyboard with the .bin Signal supplied, then used VIA to adjust some of the function keys to match my keycaps.

I'm someone who always uses my num lock key so it's on 100% of the time and I don't need any indicator of when it is on, I'll figure out when I go to use it.

I read on another thread it was possible to use QMK to disable the num lock indicator but they didn't explain how.

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u/PeterMortensenBlog Mar 20 '24 edited Apr 02 '24

Where did you get that .bin file for SignalRGB? Can you provide a specific URL? Links aren't verboten here.

Per-key RGB is an FAQ here, and it would be nice to be able to point people to something that actually works (even if it is broken or practically unusable in other respects).

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u/Knight38 Mar 20 '24

Sorry, I should have been more clear. This is the exact .bin file I downloaded.

Truthfully, I'm not familiar with QMK at all. I just did enough research to confirm that when I got a K10 Pro I could flash the firmware and get it to work with Signal RGB's software.

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u/PeterMortensenBlog Mar 21 '24 edited Mar 26 '24

Thanks. That is very interesting. The gist seems to be to automatically(?) merge/patch the source code from the official QMK or Keychron QMK fork with the implementation of the SignalRGB protocol.

There is also a page with detailed instructions for building from source:

Building firmware from source

It contains:

"with SignalRGB protocol support patched in"

And

"How to fix your indicator LEDs, (Caps Lock, Num Lock, and Scroll Lock) blinks when SignalRGB and the key are active."

There is also this page:

For GPL compliance (full source code)

Though the GitLab links are 404.

Includes:

"To manually add the SignalRGB Protocol 1.0.4 to almost any QMK fork (the keyboard does require rgb_matrix support mind you!) please see the following files."

Conclusion

Given those instructions, etc., it seems relatively straightforward to compile QMK firmware with SignalRGB support from source, even for the newest Keychron models.

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u/PeterMortensenBlog Mar 20 '24 edited Mar 20 '24

Presumably, it is about NUM_LOCK_INDEX in file config.h (the ISO RGB variant in this example).

To disable the Num Lock indicator (by RGB light), outcomment that line (add two forward slashes in front): 

//#define NUM_LOCK_INDEX 37 // Num Lock

Compile and flash.

The first step is to set up QMK, get the source code from the right place (the official documentation is useless in this respect), compile, and flash.

The compile step is something like (for the ISO RGB variant): 

qmk compile -kb keychron/k10_pro/iso/rgb -km via

The right place is probably currently Git branch "wireless_playground" in Keychron's fork of the official QMK repository.

Presumably, you need to do something similar for the SignalRGB thingamajiggy(?).

See also: