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I removed my mouse (Logitech M525) and keyboard (Logitech K380) from Settings --> Bluetooth, because it didn't work and I thought I could add it again afterwards, but this was not the case.

I tried it via CLI --> bluetoothctl. If I press a key on the keyboard or move the mouse, I see the following:

[CHG] Device 34:88:5D:4A:69:F4 Connected: yes
[CHG] Device 34:88:5D:4A:69:F4 Connected: no

[CHG] Device 34:88:5D:89:5A:88 Connected: yes
[CHG] Device 34:88:5D:89:5A:88 Connected: no

So it connects but disconnects instantly again, so it is not possible to use it. Also connect 34:88:5D:4A:69:F4 doesn't work and shows me:

[bluetooth]# connect 34:88:5D:4A:69:F4
Attempting to connect to 34:88:5D:4A:69:F4
Failed to connect: org.bluez.Error.Failed

Here is what happens when I move the mouse:

enter image description here

I already tried:

  • to disable / enable it from the bios.
  • set UserspaceHID=true in /etc/bluetooth/input.conf and restart the bluetooth service.
  • updated from 18.04 -> 18.10

The bug is still there... Is there anything I can do to solve this bug?

sunwarr10r
  • 1,457

2 Answers2

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All above attempts and restarting the computer and the devices didn't help.

The solution was to pull out the batteries and then press the bluetooth button on the mouse to make it discoverable. After this the keyboard was also recognized (without restarting it and even if it is a separate model and hasn't anything to do with the mouse).

sunwarr10r
  • 1,457
0

Try running this command first:

bluetoothctl remove <device>

and then:

bluetoothctl connect <device>
BeastOfCaerbannog
  • 16,936
neoedmund
  • 111