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#1 2023-05-26 12:38:52

Advait
Member
Registered: 2023-05-26
Posts: 1

Failed to connect: org.bluez.Error.Failed br-connection-unknown

I am using bluetoothctl to connect bluetooth earphone.

Here is the error:

[bluetooth]# connect 11:11:22:33:37:44
Attempting to connect to 11:11:22:33:37:44
[CHG] Device 11:11:22:33:37:44 Connected: yes
Failed to connect: org.bluez.Error.Failed br-connection-unknown
[CHG] Device 11:11:22:33:37:44 Connected: no

Found this on https://github.com/bluez/bluez/blob/bb1 … xt#L26-L30

BR/EDR connection unknown error
===============================
    errno:    ENOSYS

    Failed due to unknown reason.

I am not sure how to proceed.

ADDITIONAL INFORMATION:

[alter@advait ~]$ lsusb #usb-utils
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 002: ID 0bda:0316 Realtek Semiconductor Corp. Card Reader
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 06cb:009a Synaptics, Inc. Metallica MIS Touch Fingerprint Reader
Bus 001 Device 004: ID 04f2:b604 Chicony Electronics Co., Ltd Integrated Camera (1280x720@30)
Bus 001 Device 003: ID 8087:0a2b Intel Corp. Bluetooth wireless interface
Bus 001 Device 002: ID 04f2:b613 Chicony Electronics Co., Ltd Integrated IR Camera
Bus 001 Device 006: ID 2386:432f Raydium Corporation Touch System
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

[alter@advait ~]$ rfkill
ID TYPE      DEVICE                   SOFT      HARD
0 bluetooth hci0                unblocked unblocked
1 bluetooth tpacpi_bluetooth_sw unblocked unblocked
2 wlan      phy0                unblocked unblocked

dmesg output:

[    6.187069] Bluetooth: hci0: Waiting for firmware download to complete
[    6.187386] Bluetooth: hci0: Firmware loaded in 1853437 usecs
[    6.187517] Bluetooth: hci0: Waiting for device to boot
[    6.200730] Bluetooth: hci0: Device booted in 13012 usecs
[    6.200733] Bluetooth: hci0: Malformed MSFT vendor event: 0x02
[    6.207840] Bluetooth: hci0: Found Intel DDC parameters: intel/ibt-12-16.ddc
[    6.210416] Bluetooth: hci0: Applying Intel DDC parameters completed
[    6.211498] Bluetooth: hci0: Firmware revision 0.1 build 19 week 44 2021

Last edited by Advait (2023-06-24 13:47:19)

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#2 Today 15:19:49

nroth
Member
Registered: 2017-10-06
Posts: 11

Re: Failed to connect: org.bluez.Error.Failed br-connection-unknown

I started having this issue for the first time today, with a previously-working pair of headphones. It turns out the issue is that my wife had unpaired the headphones when connecting them to her device, and not told me. The fix is to put them into pairing mode and re-pair with Linux.

Last edited by nroth (Today 15:22:40)

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