Rato Bluetooth

Por que não consigo conectar o seguinte mouse:

# lsusb
...
Bus 001 Device 002: ID 19ff:0239 Dynex
...

O dispositivo 2, o controlador, está funcionando bem, depois de pesquisar no Google o Hex ID (Veja a resposta: Atualização de firmware para ver como fiz funcionar, caso você esteja curioso. Aqui é onde estou perplexo. Usando Gentoo Bluetooth Wiki e as páginas Arch Bluetooth Mouse , a seguir está a saída que recebo de blutoothctl:

# bluetoothctl
Agent registered
[bluetooth]# list
Controller BC:14:EF:65:E9:62 bedroom-gentoo [default]
[bluetooth]# show  BC:14:EF:65:E9:62
Controller BC:14:EF:65:E9:62 (public)
    Name: bedroom-gentoo
    Alias: bedroom-gentoo
    Class: 0x001c0104
    Powered: yes
    Discoverable: yes
    Pairable: yes
    UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb)
    UUID: A/V Remote Control        (0000110e-0000-1000-8000-00805f9b34fb)
    UUID: OBEX File Transfer        (00001106-0000-1000-8000-00805f9b34fb)
    UUID: Generic Access Profile    (00001800-0000-1000-8000-00805f9b34fb)
    UUID: OBEX Object Push          (00001105-0000-1000-8000-00805f9b34fb)
    UUID: PnP Information           (00001200-0000-1000-8000-00805f9b34fb)
    UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb)
    UUID: IrMC Sync                 (00001104-0000-1000-8000-00805f9b34fb)
    UUID: Audio Source              (0000110a-0000-1000-8000-00805f9b34fb)
    UUID: Audio Sink                (0000110b-0000-1000-8000-00805f9b34fb)
    UUID: Message Notification Se.. (00001133-0000-1000-8000-00805f9b34fb)
    UUID: Phonebook Access Server   (0000112f-0000-1000-8000-00805f9b34fb)
    UUID: Message Access Server     (00001132-0000-1000-8000-00805f9b34fb)
    Modalias: usb:v1D6Bp0246d0531
    Discovering: yes
[bluetooth]# select  BC:14:EF:65:E9:62
[bluetooth]# power off
Changing power off succeeded
[CHG] Controller BC:14:EF:65:E9:62 Powered: no
[CHG] Controller BC:14:EF:65:E9:62 Discovering: no
[CHG] Controller BC:14:EF:65:E9:62 Class: 0x00000000
[bluetooth]# power on
[CHG] Controller BC:14:EF:65:E9:62 Class: 0x001c0104
Changing power on succeeded
[CHG] Controller BC:14:EF:65:E9:62 Powered: yes
[CHG] Controller BC:14:EF:65:E9:62 Discovering: yes
[CHG] Controller BC:14:EF:65:E9:62 DiscoverableTimeout: 0x00000000
[CHG] Controller BC:14:EF:65:E9:62 DiscoverableTimeout: 0x00000000
[bluetooth]# agent on
Agent is already registered
[bluetooth]# default-agent
Default agent request successful
[bluetooth]# discoverable on
Changing discoverable on succeeded
[bluetooth]# pairable on
Changing pairable on succeeded
[bluetooth]# scan on
Discovery started
[NEW] Device 34:88:5D:87:C7:CE Bluetooth Mouse M336/M337/M535
[CHG] Device 34:88:5D:87:C7:CE Connected: no
[DEL] Device 34:88:5D:87:C7:CE Bluetooth Mouse M336/M337/M535
[NEW] Device 34:88:5D:87:C7:CE Bluetooth Mouse M336/M337/M535
[CHG] Device 34:88:5D:87:C7:CE Connected: no
[DEL] Device 34:88:5D:87:C7:CE Bluetooth Mouse M336/M337/M535

Observe as linhas NEW, CHG e DEL para o mouse Bluetooth M336/M337/M535 (recebo as linhas NEW, CHG e DEL somente ao pressionar o botão de emparelhamento). Sempre que tento conectar a confiança ou emparelhar o item, recebo:

[bluetooth]# pair 34:88:5D:87:C7:CE
Device 34:88:5D:87:C7:CE not available

Estou tentando converter meus periféricos em Bluetooth para salvar minhas portas USB frontais. Não me atrevo a experimentar meus novos fones de ouvido até ter um mouse funcionando.

Eu olhei para a embalagem hoje, e o mouse é oficialmente embalado como Logitech M535 Bluetooth Mouse