I use a Logitech K380 with a Windows laptop and an Android phone, where it works reliably and switches between three devices. On Linux Mint Cinnamon 22.3, with everything updated, Blueman detects the keyboard but does not receive any keystrokes after connecting. When I choose the pairing option, Linux asks for a six-digit PIN. The first five numbers register, but the sixth is ignored, so pairing fails. Blueman then crashes whenever I try again. Has anyone found a reliable way to pair this keyboard?
2 Answers
Try forcing the K380 into its Windows/Android/Linux operating-system mode first: hold Fn + P for about three seconds, then attempt pairing again. If that does not work, use the manual Bluetooth pairing procedure from a terminal rather than Blueman. That method resolved the PIN problem for several people, although you may need to carefully follow the commands using the laptop's built-in keyboard.
Bluetooth support on Linux can still be inconsistent, and graphical tools sometimes fail even when the underlying Bluetooth service works. If the keyboard remains usable on your other devices, try the command-line pairing approach before giving up or switching to a wired keyboard.
The terminal-based method worked! I had to spend a little time understanding exactly what to type, but pairing succeeded afterward. Thanks!