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eduardoarakaki/Keychron K2 Linux

Last active August 17, 2022 00:56
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Keychron K2 Linux
On Linux, the Keychron K2 doesn't register any of the F1-F12 function keys as actual F keys, instead, treating them as multimedia keys by default. Here's how to fix it!
They keyboard has 2 modes: Windows/Android and MacOS, but neither mode worked properly out of the box.
To fix this:
Set the keyboard to Windows mode via the side switch
Use Fn + X + L (hold for 4 seconds) to set the function key row to "Function" mode. (usually all that's necessary on Windows)
echo 0 | sudo tee /sys/module/hid_apple/parameters/fnmode
echo 1 | sudo tee /sys/module/hid_apple/parameters/fnmode (Default)
Once complete, my F1-F12 keys work properly, and holding Fn turns them into multimedia keys. You can use the evtest utility to check how keyboard keys are registering until you get the above combination of settings configured properly.
To persist this change, add a module option for hid_apple:
echo "options hid_apple fnmode=0" | sudo tee -a /etc/modprobe.d/hid_apple.conf
You may need to rebuild your initramfs if hid_apple is included. - ubuntu: sudo update-initramfs -u - arch: mkinitcpio -P
ref: mikeshade
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