Just ran into the same problem (I think) with a Logitech K780. The UI said it is paired, but the keyboard did not work. What fixed the problem: Running bluetoothctl and then switching once to unifying receiver and then back to bluetooth (as a replacement for turning bluetooth off+on at the keyboard, which doesn't have a switch).
My system is Xenial on HP Elitebook 820. Bluetooth chip: BCM20702A. Kernel 4.4.0-62-generic. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1557298 Title: [Xenial][Bluez5] Low Energy Keyboard is paired incorrectly To manage notifications about this bug go to: https://bugs.launchpad.net/unity-control-center/+bug/1557298/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
