This sounds like it could be a firmware (missing) issue. Please attach
full output from 'dmesg', and also run this command to attach more
information automatically:
apport-collect 1745828
** Changed in: bluez (Ubuntu)
Status: New => Incomplete
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1745828
Title:
Ubuntu 16.04 can't find any Bluetooth devices
Status in bluez package in Ubuntu:
Incomplete
Status in linux package in Ubuntu:
Incomplete
Bug description:
It is ON and VISIBLE in the control panel. My iPhone can see two
other devices but it can't see the computer, and the computer can't
see anything, even if left searching for tens of minutes.
The previous answers listed below suggest the following diagnostics
Bluetooth not working after update
How can I make my bluetooth works on Ubuntu 16.04?
Ubuntu 16.04 bluetooth not working (Dell XPS13)
Bluetooth (Atheros AR3012) not working on Ubuntu 16.04
Bluetooth not working on Ubuntu 16.04 LTS
Bluetooth cannot find any devices
Stuck on a bluetooth problem
The service seems to be running
/home >sudo service bluetooth status
● bluetooth.service - Bluetooth service
Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor
preset
Active: active (running) since Thu 2018-01-25 09:16:43 GMT; 1h 46min ago
Docs: man:bluetoothd(8)
Main PID: 790 (bluetoothd)
Status: "Running"
CGroup: /system.slice/bluetooth.service
└─790 /usr/lib/bluetooth/bluetoothd
Jan 25 09:18:31 george-CM6330 bluetoothd[790]: Endpoint registered:
sender=:1.87
Jan 25 09:18:31 george-CM6330 bluetoothd[790]: Endpoint registered:
sender=:1.87
Jan 25 09:18:31 george-CM6330 bluetoothd[790]: RFCOMM server failed for
Headset
Jan 25 09:20:32 george-CM6330 bluetoothd[790]: Endpoint registered:
sender=:1.12
Jan 25 09:20:32 george-CM6330 bluetoothd[790]: Endpoint registered:
sender=:1.12
Jan 25 09:20:32 george-CM6330 bluetoothd[790]: RFCOMM server failed for
Headset
Jan 25 09:20:50 george-CM6330 bluetoothd[790]: Endpoint unregistered:
sender=:1.
Jan 25 09:20:50 george-CM6330 bluetoothd[790]: Endpoint unregistered:
sender=:1.
Jan 25 09:21:01 george-CM6330 bluetoothd[790]: Endpoint unregistered:
sender=:1.
Jan 25 09:21:01 george-CM6330 bluetoothd[790]: Endpoint unregistered:
sender=:1.
and not blocked
/home >rfkill list
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
I have edited /etc/bluetooth/main.conf to include
AutoEnable=true
but I noted that the entire file was commented out.
The kernel seems reasonably up to date
>uname -a
Linux george-CM6330 4.13.0-26-generic #29~16.04.2-Ubuntu SMP Tue Jan 9
22:00:44 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
I wonder if I need a device driver, but I have no idea how to find
out. The following diagnostics may help some of you knowledgeable
people find out.
>hcitool dev
Devices:
hci0 24:0A:64:F5:EE:86
and the output of dmsg is
>dmesg | grep Blue
[ 2.030855] usb 1-1.4: Product: Bluetooth Radio
[ 13.806355] Bluetooth: Core ver 2.22
[ 13.806369] Bluetooth: HCI device and connection manager initialized
[ 13.806372] Bluetooth: HCI socket layer initialized
[ 13.806373] Bluetooth: L2CAP socket layer initialized
[ 13.806377] Bluetooth: SCO socket layer initialized
[ 13.827384] Bluetooth: hci0: rtl: examining hci_ver=06 hci_rev=000a
lmp_ver=06 lmp_subver=8821
[ 13.827386] Bluetooth: hci0: rtl: loading rtl_bt/rtl8821a_config.bin
[ 13.865327] Bluetooth: hci0: rtl: loading rtl_bt/rtl8821a_fw.bin
[ 13.877382] Bluetooth: hci0: rom_version status=0 version=1
[ 13.877387] Bluetooth: cfg_sz 0, total size 17428
[ 16.550280] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 16.550281] Bluetooth: BNEP filters: protocol multicast
[ 16.550284] Bluetooth: BNEP socket layer initialized
[ 27.868345] Bluetooth: RFCOMM TTY layer initialized
[ 27.868350] Bluetooth: RFCOMM socket layer initialized
[ 27.868354] Bluetooth: RFCOMM ver 1.11
and of lsusb is
>lsusb
Bus 002 Device 003: ID 046d:c52f Logitech, Inc. Unifying Receiver
Bus 002 Device 006: ID 04b8:0849 Seiko Epson Corp. Stylus SX205
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 004 Device 002: ID 04e8:6123 Samsung Electronics Co., Ltd
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 004: ID 13d3:3414 IMC Networks
Bus 001 Device 003: ID 058f:6366 Alcor Micro Corp. Multi Flash Reader
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
Thanking you in anticipation
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