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Comment by martinjc | Hacker News Reader

Yeah on the mac it works fine. The keyboard just shipped with the Left Alt and Left Windows key in the correct positions, but they are mapped opposite in the firmware. Imagine how maddening it was in the beginning.

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GP’s point is that many keyboards these days come with a Mac/Windows switch, and one of the things that switch does is swap the keycodes sent by the Alt and Win keys—the “Mac” behaviour is exactly what you’re describing. (The other thing it does is toggle FnLock for the F-keys.) So if I had a problem like yours with my keyboard I’d think that the Mac/Win switch were in the wrong position. If I’m reading page 9 of the manual[1] right, on the K4 the switch in question is right next to the USB-C port.

[1] https://www.keychron.com/pages/k4-keyboard-user-manual

Are you sure you don't have a tiny switch on the side? The manual indicates it should have one -

https://www.keychron.com/pages/k4-user-manual

I do, but when on the windows mode the keys mentioned are in the wrong positions.

Edit and if i switch to the macOS mode. The right alt-gr key is not mapped correctly.

On macOS:

I use my Keychron C3 in Windows mode because the macOS mode ain't right with the bottom left corner keys.

Maybe placement of Control/Option/Command aren't similar enough to the MacBook Pro keyboard for me.

Been meaning to figure this out and fix it... swapping physical keycaps or remapping in software or replacing the keyboard...

Waiting for it to die and will not buy another of theirs. Piece of shit.

Aw I like mine! Besides those few keys of layout.

Hope your next buy's perfect.

I don't think I've ever had a keyboard die on me

If you're not aware, you can remap modifier keys in System Settings on macOS. It doesn't have individual settings for left/right versions of a modifier key, so keep it in whichever mode has the modifiers on left/right paired with each other correctly, and then swap their functions to the right ones.

https://i.imgur.com/FXkmZRV.png

Settings are per keyboard so fixing your external keyboard won't mix up any other keyboards you use (particularly for laptops).

Just remap it! If you're on Windows, SharpKeys will do that for you. https://github.com/randyrants/sharpkeys

I have autohotkey for remapping. The issue is when i boot into a rpi with a new build, i don't want to pollute it with custom xbind mappings.

usbhidproxy would seem to fit the bill, then https://github.com/moonsightz/usbhidproxy

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