System not detecting any bluetooth devices

Support
,
1

When trying to connect a bluetooth device to my unix pc using blueberry, no bluetooth devices are detected.

The output of
sudo dmesg | grep -i 'blue'
looks like this:

[    4.513515] Bluetooth: Core ver 2.22
[    4.513533] Bluetooth: HCI device and connection manager initialized
[    4.513536] Bluetooth: HCI socket layer initialized
[    4.513537] Bluetooth: L2CAP socket layer initialized
[    4.513539] Bluetooth: SCO socket layer initialized
[    4.790751] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[    4.790752] Bluetooth: BNEP filters: protocol multicast
[    4.790754] Bluetooth: BNEP socket layer initialized
[   19.136131] Bluetooth: RFCOMM TTY layer initialized
[   19.136134] Bluetooth: RFCOMM socket layer initialized
[   19.136136] Bluetooth: RFCOMM ver 1.11

I am on manjaro release 21.1.6-1,
Kernel 5.10.70-1-MANJARO
Xfce 4.16

2

Just putting this.
https://wiki.archlinux.org/title/Bluetooth

3

I have read the Bluetooth documention for arch linux.

When trying hcitool lescan, I get the error Set scan parameters failed: Input/output error
I tried restarting hci0 by

hciconfig hci0 down
hciconfig hci0 up

and

hciconfig hci0 reset

But this doesnt help.
However, the following looks fine:

[imedv11 myuser]# btmgmt info
Index list with 1 item
hci0:	Primary controller
	addr 00:15:83:09:0F:B6 version 3 manufacturer 15 class 0x7c0104
	supported settings: powered connectable fast-connectable discoverable bondable link-security br/edr debug-keys phy-configuration 
	current settings: powered connectable discoverable bondable br/edr 
	name imedv11
	short name 
[imedv11 myuser]# hciconfig -a hci0
hci0:	Type: Primary  Bus: USB
	BD Address: 00:15:83:09:0F:B6  ACL MTU: 1017:8  SCO MTU: 64:8
	UP RUNNING PSCAN ISCAN 
	RX bytes:1572 acl:0 sco:0 events:78 errors:0
	TX bytes:1323 acl:0 sco:0 commands:78 errors:0
	Features: 0xff 0xff 0x8d 0xfe 0x9b 0xf9 0x00 0x80
	Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 
	Link policy: RSWITCH HOLD SNIFF PARK 
	Link mode: PERIPHERAL ACCEPT 
	Name: 'imedv11'
	Class: 0x7c0104
	Service Classes: Rendering, Capturing, Object Transfer, Audio, Telephony
	Device Class: Computer, Desktop workstation
	HCI Version: 2.0 (0x3)  Revision: 0x4027
	LMP Version: 2.0 (0x3)  Subversion: 0x430e
	Manufacturer: Broadcom Corporation (15)

[imedv11 myuser]# lsusb
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 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 046d:c08e Logitech, Inc. MX518 Gaming Mouse
Bus 001 Device 004: ID 0a5c:2039 Broadcom Corp. BCM2045 Bluetooth
Bus 001 Device 002: ID 0a5c:4500 Broadcom Corp. BCM2046B1 USB 2.0 Hub (part of BCM2046 Bluetooth)
Bus 001 Device 006: ID 046d:0825 Logitech, Inc. Webcam C270
Bus 001 Device 005: ID 046d:c248 Logitech, Inc. G105 Gaming Keyboard
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Do you have any ideas, what I can do?

I also uninstalled all bluetooth tools and libs and installed only the recommended tools mentioned on the archlinux bluetooth page.

4

In generel what you can do, when such errors occur is to Google (use a search engine of your choice) the device name (BCM2046B1 USB 2.0 Hub (part of BCM2046 Bluetooth)).

That being said: I tried this and I didn’t really find anything conclusive.

One person got it working by installing the right Windows drivers in a Windows VM to activate the Bluetooth (absolutely wild).
But I don’t think it’s the problem here?

It seems that this device has problems running on alot of peoples machines (from what I have gathered) even tho it seems the drivers are implemented into the Linux kernel from version 2.6 onwards…

I also want to mention that it seems to run a rather old version of Bluetooth - which might cause problems when you try to pair it with newer devices (I remember trying to pair my jbl Bluetooth speakers with my pc over a dongle - but the speakers ran Bluetooth version 4 and the dongle only 2 so it didn’t work at all).

Sorry I couldn’t be of more help, but maybe you find something by looking the devices name up.

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