Keychron K1 v4 (87-key) Keyboard
Table of Contents
Gripes
No scroll lock (or key modifier combo that produces scroll lock). Instead I have this voice assistant key because a 2-key combo is one key too many.
Space bar is too wide. Left Alt and Super are a reach for thumb usage. I'll probably bind Left Ctrl to Super since I already use Caps as Ctrl.
Configuration
Swap Left Super and Ctrl
Note the other XKBOPTIONS must be repeated here to apply. Also it's important that the bluetooth address be lower case. I found upper case caused the rule to fail to match.
ACTION=="add", ATTRS{idVendor}=="05ac", ATTRS{idProduct}=="024f", ENV{XKBOPTIONS}="ctrl:swap_lwin_lctl,ctrl:nocaps,grp:shifts_toggle" ACTION=="add", SUBSYSTEM=="input", ATTRS{uniq}=="fa:ke:ma:ca:dd:rs", ENV{XKBOPTIONS}="ctrl:swap_lwin_lctl,ctrl:nocaps,grp:shifts_toggle"
Reload udev to activate the new rule, then replug then keyboard.
sudo udevadm control -R
Make the function keys work correctly (on Linux)
This works with the hid_apple module. To make F keys the default behavior add this config and replug the keyboard:
options hid_apple fnmode=0
Holding Fn + X + L for 4 seconds switches some mode related to this, but it wouldn't work for me without the config as well.
Fn + K + C also toggles something related to F5 and F6.
Lighting
| Function | Key Combo |
|---|---|
| Toggle lighting | Fn + lighting key |
| Switch color | Fn + left or = Fn + right= |
| Lock setting | Fn + L + lighting key (4 seconds) |
| Speed | Fn + '+ |
Auto Sleep Mode
Has a 10-minute timer. Fn + S + O to toggle.
Factory reset
Fn + Z + J (4 seconds)