Ubuntu 18.04.3 Bluetooth failed to connect: org.bluez.Error.Failed (INTEL® DUAL BAND WIRELESS-AC 9560 + BLUETOOTH)

Question

I'm unable to connect my Bluetooth headset Sony MDR-XB950N1. Here are some info that might help:

This is a Ubuntu 18.04.3 from scratch (first time I did some changes, so this time it's intact)

Output for: rfkill list

0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no
1: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no

Output for: dmesg | grep Blue

[    3.779924] Bluetooth: Core ver 2.22
[    3.779933] Bluetooth: HCI device and connection manager initialized
[    3.779936] Bluetooth: HCI socket layer initialized
[    3.779937] Bluetooth: L2CAP socket layer initialized
[    3.779939] Bluetooth: SCO socket layer initialized
[    3.927905] Bluetooth: hci0: Firmware revision 0.1 build 184 week 15 2019
[    4.085989] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[    4.085990] Bluetooth: BNEP filters: protocol multicast
[    4.085992] Bluetooth: BNEP socket layer initialized
[   51.943002] Bluetooth: RFCOMM TTY layer initialized
[   51.943005] Bluetooth: RFCOMM socket layer initialized
[   51.943008] Bluetooth: RFCOMM ver 1.11
[ 3337.300487] audit: type=1107 audit(1578332620.663:53): pid=714 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" path="/" interface="org.freedesktop.DBus.ObjectManager" member="GetManagedObjects" mask="send" name="org.bluez" pid=5801 label="snap.teams-for-linux.teams-for-linux" peer_pid=847 peer_label="unconfined"

Output for: lspci -knn | grep Net -A2; lsusb

00:14.3 Network controller [0280]: Intel Corporation Wireless-AC 9560 [Jefferson Peak] [8086:a370] (rev 10)
    Subsystem: Intel Corporation Device [8086:0034]
    Kernel driver in use: iwlwifi
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 048d:ce00 Integrated Technology Express, Inc. 
Bus 001 Device 003: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 Device 002: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 006: ID 8087:0aaa Intel Corp. 
Bus 001 Device 005: ID 04f2:b65a Chicony Electronics Co., Ltd 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Trying over bluetoothctl:

[NEW] Controller 38:00:25:A1:F0:85 bonavel [default]
Agent registered
[bluetooth]# list
Controller 38:00:25:A1:F0:85 bonavel [default]
[NEW] Device 04:5D:4B:96:D5:65 MDR-XB950N1
[bluetooth]# devices
Device 04:5D:4B:96:D5:65 MDR-XB950N1
[bluetooth]# scan on
Discovery started
[bluetooth]# devices
Device 04:5D:4B:96:D5:65 MDR-XB950N1
[bluetooth]# pair 04:5D:4B:96:D5:65
Attempting to pair with 04:5D:4B:96:D5:65
[CHG] Device 04:5D:4B:96:D5:65 Connected: yes
[CHG] Device 04:5D:4B:96:D5:65 Connected: no
[CHG] Device 04:5D:4B:96:D5:65 Paired: yes
Pairing successful
[CHG] Controller 38:00:25:A1:F0:85 Discoverable: no
[bluetooth]# trust 04:5D:4B:96:D5:65
[CHG] Device 04:5D:4B:96:D5:65 Trusted: yes
Changing 04:5D:4B:96:D5:65 trust succeeded
[bluetooth]# connect 04:5D:4B:96:D5:65
Attempting to connect to 04:5D:4B:96:D5:65
Failed to connect: org.bluez.Error.Failed
[bluetooth]# 
[CHG] Controller 38:00:25:A1:F0:85 DiscoverableTimeout: 0x00000000
[CHG] Controller 38:00:25:A1:F0:85 DiscoverableTimeout: 0x00000000
[CHG] Controller 38:00:25:A1:F0:85 Discoverable: yes
[bluetooth]# devices
Device 04:5D:4B:96:D5:65 MDR-XB950N1
[bluetooth]# connect 04:5D:4B:96:D5:65
Attempting to connect to 04:5D:4B:96:D5:65
Failed to connect: org.bluez.Error.Failed

My Bluetooth Logitech M585 worked fine:
```
Device E1:B5:43:77:D0:97 M585/M590
```

Output of tail -f /var/log/syslog when trying to connect again over bluetoothctl:

Jan  4 16:46:43 bonavel bluetoothd[887]: 04:5D:4B:96:D5:65: error updating services: Host is down (112)

Output of pactl list | grep -i bluetooth

Name: module-bluetooth-policy
    module.description = "Policy module to make using bluetooth devices out-of-the-box easier"
Name: module-bluetooth-discover
    module.description = "Detect available Bluetooth daemon and load the corresponding discovery module"
    module.description = "Detect available BlueZ 5 Bluetooth audio devices and load BlueZ 5 Bluetooth audio drivers"

Applied this solution and it is still not working.
Applied this solution and now I was able to pair and connect, but it was unable to reproduce sound though it quickly disconnected.
Output of bluetoothctl after item 10.

    [bluetooth]# info 04:5D:4B:96:D5:65
    Device 04:5D:4B:96:D5:65 (public)
        Name: MDR-XB950N1
        Alias: MDR-XB950N1
        Class: 0x00240404
        Icon: audio-card
        Paired: yes
        Trusted: no
        Blocked: no
        Connected: no
        LegacyPairing: no
        UUID: Handsfree                 (0000111e-0000-1000-8000-00805f9b34fb)
        UUID: Headset                   (00001108-0000-1000-8000-00805f9b34fb)
        UUID: Audio Sink                (0000110b-0000-1000-8000-00805f9b34fb)
        UUID: Advanced Audio Distribu.. (0000110d-0000-1000-8000-00805f9b34fb)
        UUID: A/V Remote Control        (0000110e-0000-1000-8000-00805f9b34fb)
        UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb)
        UUID: Headset HS                (00001131-0000-1000-8000-00805f9b34fb)
        UUID: A/V Remote Control Cont.. (0000110f-0000-1000-8000-00805f9b34fb)
        UUID: Vendor specific           (00000000-deca-fade-deca-deafdecacaff)
        Modalias: usb:v054Cp0BEAd0102
    [bluetooth]# connect 04:5D:4B:96:D5:65
    Attempting to connect to 04:5D:4B:96:D5:65
    [CHG] Device 04:5D:4B:96:D5:65 Connected: yes
    [CHG] Device 04:5D:4B:96:D5:65 UUIDs: 00000000-deca-fade-deca-deafdecacaff
    [CHG] Device 04:5D:4B:96:D5:65 UUIDs: 00001108-0000-1000-8000-00805f9b34fb
    [CHG] Device 04:5D:4B:96:D5:65 UUIDs: 0000110b-0000-1000-8000-00805f9b34fb
    [CHG] Device 04:5D:4B:96:D5:65 UUIDs: 0000110c-0000-1000-8000-00805f9b34fb
    [CHG] Device 04:5D:4B:96:D5:65 UUIDs: 0000110e-0000-1000-8000-00805f9b34fb
    [CHG] Device 04:5D:4B:96:D5:65 UUIDs: 0000111e-0000-1000-8000-00805f9b34fb
    [CHG] Device 04:5D:4B:96:D5:65 UUIDs: 00001200-0000-1000-8000-00805f9b34fb
    [CHG] Device 04:5D:4B:96:D5:65 UUIDs: 7b265b0e-2232-4d45-bef4-bb8ae62f813d
    [CHG] Device 04:5D:4B:96:D5:65 UUIDs: 96cc203e-5068-46ad-b32d-e316f5e069ba
    [CHG] Device 04:5D:4B:96:D5:65 UUIDs: b9b213ce-eeab-49e4-8fd9-aa478ed1b26b
    [CHG] Device 04:5D:4B:96:D5:65 ServicesResolved: yes
    Connection successful
    [CHG] Controller 38:00:25:A1:F0:85 Discovering: yes
    [CHG] Controller 38:00:25:A1:F0:85 DiscoverableTimeout: 0x00000000
    [CHG] Controller 38:00:25:A1:F0:85 DiscoverableTimeout: 0x00000000
    [CHG] Controller 38:00:25:A1:F0:85 Discoverable: yes
    [CHG] Device 04:5D:4B:96:D5:65 ServicesResolved: no
    [CHG] Device 04:5D:4B:96:D5:65 Connected: no
    [CHG] Device 04:5D:4B:96:D5:65 Connected: yes
    [CHG] Controller 38:00:25:A1:F0:85 Discoverable: no
    [MDR-XB950N1]# connect 04:5D:4B:96:D5:65
    Attempting to connect to 04:5D:4B:96:D5:65
    Failed to connect: org.bluez.Error.InProgress

I factory restored the headset following this instructions. Then I was able to pair and connect to it. But when I put some audio through it, it feels like there was a lot of interference with only some random very cut noises that I couldn't even relate to what was being played. Then I was able to disconnected and connect again but now no sound is being played at all. Then after 1 min or so, the headset lost the connection.
In the software update settings this is what looks like:

I've been searching for more than 2 hours and applying all possible solutions I found, but none of them fixed my problem, so I reinstalled Ubuntu 18.04.3 from scratch.

Apologies because I feel this should be a comment but I do not have enough reputation. If you have WiFi/Bluetooth Intel chip (which is not completely clear to me from your info) there may be a conflict between WiFi and bluetooth Intel's integrated controllers. There is an excellent explanation in this answer of the causes and a solution: basically "setting an option for iwlwifi kernel module that disables buggy "bluetooth coexistence" technology". Note tha — Alf Pascu, May 09 '20 at 13:02
Alf, I mentioned that answer on item 10. It didn't work. The hardware is an INTEL® DUAL BAND WIRELESS-AC 9560 + BLUETOOTH and I mention it on item 4. — bonafernando, May 26 '20 at 18:25
I just discovered it's not an error only for Sony MDR-XB950N1, it also doesn't work with Google Pixel Buds 2. — bonafernando, Jul 17 '20 at 16:19

score 0 · Accepted Answer · answered Aug 10 '21 at 00:41

0

The problem was that one of the antennas of the Intel Corporation Wireless-AC 9560 was disconnected. I've opened the computer, connected the antenna and I have a perfect working Bluetooth and an even better Wifi signal.

answered Aug 10 '21 at 00:41

bonafernando

183

Ubuntu 18.04.3 Bluetooth failed to connect: org.bluez.Error.Failed (INTEL® DUAL BAND WIRELESS-AC 9560 + BLUETOOTH)

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