OK voici:
utilisateur@utilisateur-Latitude-E6410:~$ uname -a; lspci -nnk | grep -iA3 net; lsusb; dmesg | grep -i bluetooth; dmesg | grep -i firmware; lsmod | grep bluetooth
Linux utilisateur-Latitude-E6410 4.15.0-64-generic #73-Ubuntu SMP Thu Sep 12 13:16:13 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
00:19.0 Ethernet controller [0200]: Intel Corporation 82577LM Gigabit Network Connection [8086:10ea] (rev 05)
Subsystem: Dell Latitude E6410 [1028:040a]
Kernel driver in use: e1000e
Kernel modules: e1000e
--
02:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N 6200 [8086:422c] (rev 35)
Subsystem: Intel Corporation Centrino Advanced-N 6200 2x2 AGN [8086:1321]
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi, wl
Bus 002 Device 004: ID 0a5c:5800 Broadcom Corp. BCM5880 Secure Applications Processor
Bus 002 Device 003: ID 413c:8187 Dell Computer Corp. DW375 Bluetooth Module
Bus 002 Device 006: ID 12d1:108a Huawei Technologies Co., Ltd.
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
[ 1.613182] usb 2-1.7: Product: DW375 Bluetooth Module
[ 25.067444] Bluetooth: Core ver 2.22
[ 25.067470] Bluetooth: HCI device and connection manager initialized
[ 25.067474] Bluetooth: HCI socket layer initialized
[ 25.067477] Bluetooth: L2CAP socket layer initialized
[ 25.067481] Bluetooth: SCO socket layer initialized
[ 36.781430] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 36.781432] Bluetooth: BNEP filters: protocol multicast
[ 36.781436] Bluetooth: BNEP socket layer initialized
[ 96.808636] Bluetooth: RFCOMM TTY layer initialized
[ 96.808645] Bluetooth: RFCOMM socket layer initialized
[ 96.808655] Bluetooth: RFCOMM ver 1.11
[ 0.029550] Spectre V2 : Enabling Restricted Speculation for firmware calls
[ 0.054556] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
[ 25.303565] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-6000-6.ucode failed with error -2
[ 25.347932] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-6000-5.ucode failed with error -2
[ 25.892798] iwlwifi 0000:02:00.0: loaded firmware version 9.221.4.1 build 25532 op_mode iwldvm
bluetooth 544768 31 btrtl,btintel,btbcm,bnep,btusb,rfcomm
ecdh_generic 24576 1 bluetooth
utilisateur@utilisateur-Latitude-E6410:~$
utilisateur@utilisateur-Latitude-E6410:~$ sudo service bluetooth status
[sudo] Mot de passe de utilisateur :
● bluetooth.service - Bluetooth service
Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset
Active: active (running) since Fri 2019-09-27 10:35:11 CEST; 8min ago
Docs: man:bluetoothd(8)
Main PID: 982 (bluetoothd)
Status: "Running"
Tasks: 1 (limit: 4516)
CGroup: /system.slice/bluetooth.service
└─982 /usr/lib/bluetooth/bluetoothd
sept. 27 10:35:10 utilisateur-Latitude-E6410 systemd[1]: Starting Bluetooth serv
sept. 27 10:35:11 utilisateur-Latitude-E6410 bluetoothd[982]: Bluetooth daemon 5
sept. 27 10:35:11 utilisateur-Latitude-E6410 systemd[1]: Started Bluetooth servi
sept. 27 10:35:11 utilisateur-Latitude-E6410 bluetoothd[982]: Starting SDP serve
sept. 27 10:35:11 utilisateur-Latitude-E6410 bluetoothd[982]: Bluetooth manageme
sept. 27 10:35:11 utilisateur-Latitude-E6410 bluetoothd[982]: LEAdvertisingManag
sept. 27 10:36:11 utilisateur-Latitude-E6410 bluetoothd[982]: Endpoint registere
sept. 27 10:36:11 utilisateur-Latitude-E6410 bluetoothd[982]: Endpoint registere
utilisateur@utilisateur-Latitude-E6410:~$
utilisateur@utilisateur-Latitude-E6410:~$ dpkg -l | grep blue
ii bluefish 2.2.10-1 amd64 advanced Gtk+ text editor for web and software development
ii bluefish-data 2.2.10-1 all advanced Gtk+ text editor (data)
ii bluefish-plugins:amd64 2.2.10-1 amd64 advanced Gtk+ text editor (plugins)
ii bluegriffon 1.7.2-1~getdeb2~raring amd64 Web Editor based on the rendering engine of Firefox
ii bluegriffon-data 1.7.2-1~getdeb2~raring all Web Editor based on the rendering engine of Firefox (data files)
ii bluez 5.48-0ubuntu3.1 amd64 Bluetooth tools and daemons
ii bluez-cups 5.48-0ubuntu3.1 amd64 Bluetooth printer driver for CUPS
ii bluez-obexd 5.48-0ubuntu3.1 amd64 bluez obex daemon
ii gir1.2-gnomebluetooth-1.0:amd64 3.28.0-2ubuntu0.2 amd64 Introspection data for GnomeBluetooth
ii gnome-bluetooth 3.28.0-2ubuntu0.2 amd64 GNOME Bluetooth tools
ii indicator-bluetooth 0.0.6+17.10.20170605-0ubuntu3 amd64 System bluetooth indicator.
ii libbluetooth3:amd64 5.48-0ubuntu3.1 amd64 Library to use the BlueZ Linux Bluetooth stack
rc libgnome-bluetooth11 3.8.2.1-0ubuntu4.2 amd64 GNOME Bluetooth tools - support library
ii libgnome-bluetooth13:amd64 3.28.0-2ubuntu0.2 amd64 GNOME Bluetooth tools - support library
ii pulseaudio-module-bluetooth 1:11.1-1ubuntu7.2 amd64 Bluetooth module for PulseAudio sound server
utilisateur@utilisateur-Latitude-E6410:~$ ^C
utilisateur@utilisateur-Latitude-E6410:~$
utilisateur@utilisateur-Latitude-E6410:~$ rfkill list all
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: yes
Hard blocked: yes
2: dell-wifi: Wireless LAN
Soft blocked: yes
Hard blocked: no
3: dell-bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
utilisateur@utilisateur-Latitude-E6410:~$ ^C
utilisateur@utilisateur-Latitude-E6410:~$