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Trying to launch a BT adapter/manager(default installed on Lubu)a little window informs me that it cannot because there's no Bluez launched.

In terminal: sudo apt install bluez, it answers: Bluez is already the new version (5.46-0ubuntu3) Then invites me to remove a couple of obsolete packages.

So where's Bluez Daemon to launch?

Writing:systemctl status bluetooth.service ; hcitool dev

Answer: 

bluetooth.service - Bluetooth service
   Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset
   Active: inactive (dead)
     Docs: man:bluetoothd(8)

Command:lspci -k | grep -A3 -i "wireless\|network\|bluetooth" Answer: 04:00.0 Ethernet controller: Qualcomm Atheros AR242x / AR542x Wireless Network Adapter (PCI-Express) (rev 01) Subsystem: Quanta Microsystems, Inc AR242x / AR542x Wireless Network Adapter (PCI-Express) Kernel driver in use: ath5k Kernel modules: ath5k 0f:06.0 CardBus bridge: Texas Instruments PCIxx12 Cardbus Controller oem@oem-Extensa-5220:~$

Vallu
  • 57

1 Answers1

2

Do determine the status of Bluetooth subsytem you can do the following

  1. Install needed bluez component:

    sudo apt install bluez

  2. Check that your hardware has Bluetooth functionality (on PCI and USB), find adapter's serial:

    lspci -k | grep -A3 -i "wireless\|network\|bluetooth"
lsusb | grep -i "bluetooth\|radio"
hcitool dev

  3. Check that adapter is not blocked by rfkill and then unblock it:

    sudo rfkill list all
sudo rfkill unblock all

  4. Check the status of corresponding systemd service:

    systemctl status bluetooth.service

And of course you can determine the model of your device (for example, laptop), and check Bluetooth existence here.

N0rbert
  • 103,263