Framework 13 Japanese keyboard missing input keys in Arch Linux layouts

Framework Laptop 13 Linux
1

I’m using CachyOS, Linux Kernel 6.16.2-2 on a Laptop 13 AMD Ryzen 7040 Series, my environment is KDE Plasma 6.4.4, and my file system is Dolphin.

I’ve noticed that any of the Japanese input methods ignore some of the keys on Framework’s Japanese Keyboard hardware

Screenshot_20250823_161221
Screenshot_20250823_1612212880×1920 444 KB

As you can see, it is missing a few keys in the layout.

20250823_170821
20250823_1708211920×1440 323 KB

I have circled the missing keys on my keyboard, I would like to know if there is some sort of input template that I can download/install to my OS so that it can register all of the keys, instead of having these dead spaces on vital keys. Worked fine on Win 11 with Microsoft’s JP IME when I ran that, but I’m not sure how to get it working in my Linux system.

2

FN ist transparent to the OS. It’s handled on the keyboard.

Are there other Japanese Layouts in the model list?

3

All of the other layouts in the OS have the same issue, unfortunately none of them have quite the same layout as the framework keyboard. Hence why I came to this forum specifically.