Merci pour ce retour rapide et les liens proposés.
Je n'y ai pas trouvé de résolution à mon problème, voici donc le résultat des lignes de commandes :
joss@Winchester:~$ uname -a; lspci -nnk | grep -iA3 net; lsusb; dmesg | grep -i bluetooth; dmesg | grep -i firmware; lsmod | grep bluetooth
Linux Winchester 5.4.0-54-generic #60-Ubuntu SMP Fri Nov 6 10:37:59 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
01:00.0 Network controller [0280]: Intel Corporation Wireless 7260 [8086:08b1] (rev 6b)
Subsystem: Intel Corporation Dual Band Wireless-N 7260 [8086:c060]
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi
Bus 001 Device 002: ID 8087:8000 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 003: ID 8087:07dc Intel Corp.
Bus 002 Device 002: ID 0bda:5727 Realtek Semiconductor Corp. USB Webcam
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
[ 4.199248] Bluetooth: Core ver 2.22
[ 4.199271] Bluetooth: HCI device and connection manager initialized
[ 4.199275] Bluetooth: HCI socket layer initialized
[ 4.199277] Bluetooth: L2CAP socket layer initialized
[ 4.199281] Bluetooth: SCO socket layer initialized
[ 4.343015] Bluetooth: hci0: read Intel version: 370710018002030d00
[ 4.344504] Bluetooth: hci0: Intel Bluetooth firmware file: intel/ibt-hw-37.7.10-fw-1.80.2.3.d.bseq
[ 4.524988] Bluetooth: hci0: unexpected event for opcode 0xfc2f
[ 4.540002] Bluetooth: hci0: Intel firmware patch completed and activated
[ 4.747488] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 4.747490] Bluetooth: BNEP filters: protocol multicast
[ 4.747495] Bluetooth: BNEP socket layer initialized
[ 6.668917] Bluetooth: RFCOMM TTY layer initialized
[ 6.668923] Bluetooth: RFCOMM socket layer initialized
[ 6.668929] Bluetooth: RFCOMM ver 1.11
[ 359.625549] Bluetooth: hci0: SCO packet for unknown connection handle 0
[ 359.625562] Bluetooth: hci0: SCO packet for unknown connection handle 0
[ 367.528523] Bluetooth: hci0: SCO packet for unknown connection handle 257
[ 367.528527] Bluetooth: hci0: SCO packet for unknown connection handle 257
[ 1304.800534] Bluetooth: hci0: read Intel version: 370710018002030d00
[ 1304.800539] Bluetooth: hci0: Intel Bluetooth firmware file: intel/ibt-hw-37.7.10-fw-1.80.2.3.d.bseq
[ 1304.985528] Bluetooth: hci0: unexpected event for opcode 0xfc2f
[ 1305.000563] Bluetooth: hci0: Intel firmware patch completed and activated
[ 0.112564] Spectre V2 : Enabling Restricted Speculation for firmware calls
[ 0.157800] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
[ 2.768539] iwlwifi 0000:01:00.0: loaded firmware version 17.3216344376.0 op_mode iwlmvm
[ 4.344504] Bluetooth: hci0: Intel Bluetooth firmware file: intel/ibt-hw-37.7.10-fw-1.80.2.3.d.bseq
[ 4.540002] Bluetooth: hci0: Intel firmware patch completed and activated
[ 1304.800539] Bluetooth: hci0: Intel Bluetooth firmware file: intel/ibt-hw-37.7.10-fw-1.80.2.3.d.bseq
[ 1305.000563] Bluetooth: hci0: Intel firmware patch completed and activated
bluetooth 548864 43 btrtl,btintel,btbcm,bnep,btusb,rfcomm
ecdh_generic 16384 2 bluetooth
joss@Winchester:~$
joss@Winchester:~$ dpkg -l | grep blue
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 gnome-bluetooth 3.34.3-0ubuntu1 amd64 GNOME Bluetooth tools
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 1:13.99.1-1ubuntu3.7 amd64 Bluetooth module for PulseAudio sound server
joss@Winchester:~$
joss@Winchester:~$ rfkill list all
0: sony-wifi: Wireless LAN
Soft blocked: no
Hard blocked: no
1: sony-bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
2: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
7: nfc0: NFC
Soft blocked: no
Hard blocked: no
8: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
joss@Winchester:~$
joss@Winchester:~$ sudo service bluetooth status
[sudo] Mot de passe de joss :
● bluetooth.service - Bluetooth service
Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
Active: active (running) since Mon 2020-11-23 12:07:47 CET; 2h 22min ago
Docs: man:bluetoothd(8)
Main PID: 802 (bluetoothd)
Status: "Running"
Tasks: 1 (limit: 9376)
Memory: 2.7M
CGroup: /system.slice/bluetooth.service
└─802 /usr/lib/bluetooth/bluetoothd
nov. 23 12:13:22 Winchester bluetoothd[802]: No cache for 56:B0:AE:9A:4A:33
nov. 23 13:11:02 Winchester bluetoothd[802]: Unable to get io data for Headset Voice gateway: getpeername: Transport endpoint is not connected (107)
nov. 23 13:11:02 Winchester bluetoothd[802]: Endpoint unregistered: sender=:1.49 path=/MediaEndpoint/A2DPSink/sbc
nov. 23 13:11:02 Winchester bluetoothd[802]: Endpoint unregistered: sender=:1.49 path=/MediaEndpoint/A2DPSource/sbc
nov. 23 13:11:03 Winchester bluetoothd[802]: Endpoint registered: sender=:1.49 path=/MediaEndpoint/A2DPSink/sbc
nov. 23 13:11:03 Winchester bluetoothd[802]: Endpoint registered: sender=:1.49 path=/MediaEndpoint/A2DPSource/sbc
nov. 23 14:05:32 Winchester bluetoothd[802]: Endpoint unregistered: sender=:1.49 path=/MediaEndpoint/A2DPSink/sbc
nov. 23 14:05:32 Winchester bluetoothd[802]: Endpoint unregistered: sender=:1.49 path=/MediaEndpoint/A2DPSource/sbc
nov. 23 14:05:33 Winchester bluetoothd[802]: Endpoint registered: sender=:1.49 path=/MediaEndpoint/A2DPSink/sbc
nov. 23 14:05:33 Winchester bluetoothd[802]: Endpoint registered: sender=:1.49 path=/MediaEndpoint/A2DPSource/sbc
joss@Winchester:~$