Voici ce que j'obtiens :
guillaume@kubuntu-guigui:~$ uname -a; lspci -nnk | grep -iA3 net; lsusb; dmesg | grep -i bluetooth; dmesg | grep -i firmware; lsmod | grep bluetooth
Linux kubuntu-guigui 5.4.0-58-generic #64-Ubuntu SMP Wed Dec 9 08:16:25 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
02:00.0 Network controller [0280]: Intel Corporation Wireless 8260 [8086:24f3] (rev 3a)
Subsystem: Intel Corporation Wireless 8260 [8086:0110]
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 8087:0a2b Intel Corp.
Bus 001 Device 003: ID 0bda:58d2 Realtek Semiconductor Corp. USB2.0 HD UVC WebCam
Bus 001 Device 007: ID 1532:0208 Razer USA, Ltd Tartarus
Bus 001 Device 006: ID 1017:8022 Speedy Industrial Supplies, Pte., Ltd
Bus 001 Device 004: ID 1ea7:2002 SHARKOON Technologies GmbH
Bus 001 Device 002: ID 1a40:0101 Terminus Technology Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
[ 5.055925] Bluetooth: Core ver 2.22
[ 5.055942] Bluetooth: HCI device and connection manager initialized
[ 5.055945] Bluetooth: HCI socket layer initialized
[ 5.055949] Bluetooth: L2CAP socket layer initialized
[ 5.055952] Bluetooth: SCO socket layer initialized
[ 5.140794] Bluetooth: hci0: Firmware revision 0.0 build 10 week 41 2018
[ 7.064127] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 7.064128] Bluetooth: BNEP filters: protocol multicast
[ 7.064132] Bluetooth: BNEP socket layer initialized
[ 40.344773] Bluetooth: RFCOMM TTY layer initialized
[ 40.344809] Bluetooth: RFCOMM socket layer initialized
[ 40.344846] Bluetooth: RFCOMM ver 1.11
[ 0.000000] [Firmware Bug]: TSC ADJUST: CPU0: -30598176 force to 0
[ 0.146214] Spectre V2 : Enabling Restricted Speculation for firmware calls
[ 0.004786] [Firmware Bug]: TSC ADJUST differs within socket(s), fixing all errors
[ 1.153494] [drm] Finished loading DMC firmware i915/kbl_dmc_ver1_04.bin (v1.4)
[ 5.140794] Bluetooth: hci0: Firmware revision 0.0 build 10 week 41 2018
[ 5.168723] iwlwifi 0000:02:00.0: loaded firmware version 36.77d01142.0 op_mode iwlmvm
[ 5.265370] iwlwifi 0000:02:00.0: Allocated 0x00400000 bytes for firmware monitor.
bluetooth 548864 39 btrtl,btintel,btbcm,bnep,btusb,rfcomm
ecdh_generic 16384 2 bluetooth
guillaume@kubuntu-guigui:~$ dpkg -l | grep blue
ii bluedevil 4:5.18.4.1-0ubuntu1 amd64 KDE Bluetooth stack
ii bluez 5.53-0ubuntu3 amd64 Bluetooth tools and daemons
ii bluez-cups 5.53-0ubuntu3 amd64 Bluetooth printer driver for CUPS
ii bluez-obexd 5.53-0ubuntu3 amd64 bluez obex daemon
ii libbluetooth3:amd64 5.53-0ubuntu3 amd64 Library to use the BlueZ Linux Bluetooth stack
ii libkf5bluezqt-data 5.68.0-0ubuntu1 all data files for bluez-qt
ii libkf5bluezqt6:amd64 5.68.0-0ubuntu1 amd64 Qt wrapper for bluez
ii qml-module-org-kde-bluezqt:amd64 5.68.0-0ubuntu1 amd64 QML wrapper for bluez
guillaume@kubuntu-guigui:~$ rfkill list all
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
guillaume@kubuntu-guigui:~$ sudo service bluetooth status
[sudo] Mot de passe de guillaume :
● bluetooth.service - Bluetooth service
Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
Active: active (running) since Mon 2020-12-14 17:21:44 CET; 36min ago
Docs: man:bluetoothd(8)
Main PID: 812 (bluetoothd)
Status: "Running"
Tasks: 1 (limit: 9316)
Memory: 2.5M
CGroup: /system.slice/bluetooth.service
└─812 /usr/lib/bluetooth/bluetoothd
déc. 14 17:21:44 kubuntu-guigui systemd[1]: Starting Bluetooth service...
déc. 14 17:21:44 kubuntu-guigui bluetoothd[812]: Bluetooth daemon 5.53
déc. 14 17:21:44 kubuntu-guigui bluetoothd[812]: Starting SDP server
déc. 14 17:21:44 kubuntu-guigui systemd[1]: Started Bluetooth service.
déc. 14 17:21:44 kubuntu-guigui bluetoothd[812]: Bluetooth management interface 1.14 initialized
J'avoue ne pas avoir bien compris la notion de Retour utilisable de commande...
