Alors :
pierre@pierre-K73SV:~/rtl8723bu$ uname -a; lspci -nnk | grep -iA2 net; lsusb; dmesg | grep -i bluetooth; dmesg | grep -i firmware; lsmod | grep bluetooth
Linux pierre-K73SV 4.15.0-72-generic #81-Ubuntu SMP Tue Nov 26 12:20:02 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
03:00.0 Network controller [0280]: Ralink corp. RT5390 Wireless 802.11n 1T/1R PCIe [1814:5390]
Subsystem: AzureWave RT5390 Wireless 802.11n 1T/1R PCIe [1a3b:1155]
Kernel driver in use: rt2800pci
--
04:00.0 Ethernet controller [0200]: Qualcomm Atheros AR8151 v2.0 Gigabit Ethernet [1969:1083] (rev c0)
Subsystem: ASUSTeK Computer Inc. AR8151 v2.0 Gigabit Ethernet [1043:1851]
Kernel driver in use: atl1c
Kernel modules: atl1c
Bus 002 Device 005: ID 20f4:108a TRENDnet
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 058f:a014 Alcor Micro Corp. Asus Integrated Webcam
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
[ 43.952767] Bluetooth: Core ver 2.22
[ 43.952789] Bluetooth: HCI device and connection manager initialized
[ 43.952793] Bluetooth: HCI socket layer initialized
[ 43.952795] Bluetooth: L2CAP socket layer initialized
[ 43.952799] Bluetooth: SCO socket layer initialized
[ 56.347574] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 56.347576] Bluetooth: BNEP filters: protocol multicast
[ 56.347580] Bluetooth: BNEP socket layer initialized
[ 118.959655] Bluetooth: RFCOMM TTY layer initialized
[ 118.959664] Bluetooth: RFCOMM socket layer initialized
[ 118.959672] Bluetooth: RFCOMM ver 1.11
[24833.818713] Bluetooth: hci0: failed to disable LE scan: status 0x1f
[24833.818731] Bluetooth: hci0: command 0x200c tx timeout
[ 0.029400] Spectre V2 : Enabling Restricted Speculation for firmware calls
[ 0.056918] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
[ 0.764221] pci 0000:04:00.0: [Firmware Bug]: disabling VPD access (can't determine size of non-standard VPD format)
[ 2.457458] psmouse serio4: elantech: assuming hardware version 3 (with firmware version 0x450f01)
[ 63.489655] ieee80211 phy0: rt2x00lib_request_firmware: Info - Loading firmware file 'rt2860.bin'
[ 63.608750] ieee80211 phy0: rt2x00lib_request_firmware: Info - Firmware detected - version: 0.40
[ 153.257009] nouveau 0000:01:00.0: Direct firmware load for nouveau/nvc1_fuc084 failed with error -2
[ 153.257017] nouveau 0000:01:00.0: Direct firmware load for nouveau/nvc1_fuc084d failed with error -2
[ 153.257018] nouveau 0000:01:00.0: msvld: unable to load firmware data
bluetooth 544768 43 btrtl,btintel,btbcm,bnep,btusb,rfcomm
ecdh_generic 24576 2 bluetooth
pierre@pierre-K73SV:~/rtl8723bu$
pierre@pierre-K73SV:~$ sudo service bluetooth status
[sudo] Mot de passe de pierre :
● bluetooth.service - Bluetooth service
Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset
Active: active (running) since Wed 2019-12-25 16:51:20 CET; 2 days ago
Docs: man:bluetoothd(8)
Main PID: 1098 (bluetoothd)
Status: "Running"
Tasks: 1 (limit: 4573)
CGroup: /system.slice/bluetooth.service
└─1098 /usr/lib/bluetooth/bluetoothd
déc. 25 16:51:19 pierre-K73SV bluetoothd[1098]: Bluetooth daemon 5.48
déc. 25 16:51:20 pierre-K73SV systemd[1]: Started Bluetooth service.
déc. 25 16:51:21 pierre-K73SV bluetoothd[1098]: Starting SDP server
déc. 25 16:51:22 pierre-K73SV bluetoothd[1098]: Bluetooth management interface 1
déc. 25 16:52:24 pierre-K73SV bluetoothd[1098]: Endpoint registered: sender=:1.8
déc. 25 16:52:24 pierre-K73SV bluetoothd[1098]: Endpoint registered: sender=:1.8
déc. 27 20:52:56 pierre-K73SV bluetoothd[1098]: Endpoint unregistered: sender=:1
déc. 27 20:52:56 pierre-K73SV bluetoothd[1098]: Endpoint unregistered: sender=:1
déc. 27 20:52:59 pierre-K73SV bluetoothd[1098]: Endpoint registered: sender=:1.8
déc. 27 20:52:59 pierre-K73SV bluetoothd[1098]: Endpoint registered: sender=:1.8
lines 1-20/20 (END)
pierre@pierre-K73SV:~$ dpkg -l | grep blue
ii bluez 5.48-0ubuntu3.2 amd64 Bluetooth tools and daemons
ii bluez-cups 5.48-0ubuntu3.2 amd64 Bluetooth printer driver for CUPS
ii bluez-obexd 5.48-0ubuntu3.2 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 5.48-0ubuntu3.2 amd64 Library to use the BlueZ Linux Bluetooth stack
ii libgnome-bluetooth13:amd64 3.28.0-2ubuntu0.2 amd64 GNOME Bluetooth tools - support library
ii pulseaudio-module-bluetooth 1:11.1-1ubuntu7.4 amd64 Bluetooth module for PulseAudio sound server
pierre@pierre-K73SV:~$ ^C
pierre@pierre-K73SV:~$
pierre@pierre-K73SV:~$ rfkill list all
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: asus-wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
4: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
5: phy1: Wireless LAN
Soft blocked: no
Hard blocked: no
pierre@pierre-K73SV:~$