Hello Xubu, voici les informations :
Linux stephane-desktop-ubuntu 5.4.0-58-generic #64-Ubuntu SMP Wed Dec 9 08:16:25 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
00:1f.6 Ethernet controller [0200]: Intel Corporation Ethernet Connection (7) I219-V [8086:15bc] (rev 10)
DeviceName: Onboard - Ethernet
Subsystem: ASUSTeK Computer Inc. Ethernet Connection (7) I219-V [1043:8672]
Kernel driver in use: e1000e
Kernel modules: e1000e
01:00.0 Non-Volatile memory controller [0108]: Phison Electronics Corporation E12 NVMe Controller [1987:5012] (rev 01)
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 093a:2521 Pixart Imaging, Inc. Optical Mouse
Bus 001 Device 003: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
Bus 001 Device 002: ID 05ac:026c Apple, Inc. Magic Keyboard with Numeric Keypad
Bus 001 Device 006: ID 1b1c:0c0b Corsair Lighting Node PRO
Bus 001 Device 005: ID 1b1c:0c18 Corsair H100i Platinum
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
[ 3.118925] Bluetooth: Core ver 2.22
[ 3.118934] Bluetooth: HCI device and connection manager initialized
[ 3.118936] Bluetooth: HCI socket layer initialized
[ 3.118937] Bluetooth: L2CAP socket layer initialized
[ 3.118938] Bluetooth: SCO socket layer initialized
[ 4.463423] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 4.463424] Bluetooth: BNEP filters: protocol multicast
[ 4.463426] Bluetooth: BNEP socket layer initialized
[ 10.535724] Bluetooth: RFCOMM TTY layer initialized
[ 10.535727] Bluetooth: RFCOMM socket layer initialized
[ 10.535729] Bluetooth: RFCOMM ver 1.11
[ 3.144172] [drm] Finished loading DMC firmware i915/kbl_dmc_ver1_04.bin (v1.4)
bluetooth 548864 47 btrtl,btintel,btbcm,bnep,btusb,rfcomm
ecdh_generic 16384 2 bluetooth
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 gir1.2-gnomebluetooth-1.0:amd64 3.34.3-0ubuntu1 amd64 Introspection data for GnomeBluetooth
ii gnome-bluetooth 3.34.3-0ubuntu1 amd64 GNOME Bluetooth tools
ii indicator-bluetooth 0.0.6+17.10.20170605-0ubuntu3 amd64 System bluetooth indicator.
ii libbluetooth3:amd64 5.53-0ubuntu3 amd64 Library to use the BlueZ Linux Bluetooth stack
ii libgnome-bluetooth13:amd64 3.34.3-0ubuntu1 amd64 GNOME Bluetooth tools - support library
ii pulseaudio-module-bluetooth 1:13.99.1-1ubuntu3.8 amd64 Bluetooth module for PulseAudio sound server
● bluetooth.service - Bluetooth service
Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
Active: active (running) since Sun 2020-12-27 14:21:57 CET; 6min ago
Docs: man:bluetoothd(8)
Main PID: 1059 (bluetoothd)
Status: "Running"
Tasks: 1 (limit: 57574)
Memory: 3.5M
CGroup: /system.slice/bluetooth.service
└─1059 /usr/lib/bluetooth/bluetoothd
déc. 27 14:21:57 stephane-desktop-ubuntu systemd[1]: Started Bluetooth service.
déc. 27 14:21:57 stephane-desktop-ubuntu bluetoothd[1059]: Starting SDP server
déc. 27 14:21:57 stephane-desktop-ubuntu bluetoothd[1059]: Bluetooth management interface 1.14 initialized
déc. 27 14:22:03 stephane-desktop-ubuntu bluetoothd[1059]: Endpoint registered: sender=:1.67 path=/MediaEndpoint/A2DPSink/sbc
déc. 27 14:22:03 stephane-desktop-ubuntu bluetoothd[1059]: Endpoint registered: sender=:1.67 path=/MediaEndpoint/A2DPSource/sbc
déc. 27 14:22:06 stephane-desktop-ubuntu bluetoothd[1059]: Authentication attempt without agent
déc. 27 14:22:06 stephane-desktop-ubuntu bluetoothd[1059]: Access denied: org.bluez.Error.Rejected
déc. 27 14:22:06 stephane-desktop-ubuntu bluetoothd[1059]: Authentication attempt without agent
déc. 27 14:22:06 stephane-desktop-ubuntu bluetoothd[1059]: Access denied: org.bluez.Error.Rejected
déc. 27 14:25:48 stephane-desktop-ubuntu bluetoothd[1059]: /org/bluez/hci0/dev_F4_0E_01_C7_A8_64/fd0: fd(50) ready