linux-bluetooth-connection-fix

Automated process to connect bluetooth devices on Linux despite the error hci0: command <code> tx timeout. Related errors

Bluetooth: hci0: command 0x0c24 tx timeout
Bluetooth: hci0: command 0x0c52 tx timeout
Bluetooth: hci0: command 0x0c1a tx timeout

Running it

Usage

$ java -jar linux-bluetooth-connection-fix.jar <deviceId> <controllerId>
[main] INFO com.mageddo.linux.bluetoothfix.BluetoothConnector - found=false, code=0, out=null
[main] WARN com.mageddo.linux.bluetoothfix.BluetoothConnector - systemctl will ask you for root password to restart bluetooth service ...
[main] INFO com.mageddo.linux.bluetoothfix.BluetoothConnector - found=true, code=0, out=null
[main] INFO com.mageddo.linux.bluetoothfix.BluetoothConnector - status=tried, occurrence=CONNECTED, time=10158
[main] INFO com.mageddo.linux.bluetoothfix.BluetoothConnector - status=successfullyConnected!, device=ConReq(deviceId=94:CC:56:E5:72:85, controllerId=00:F0:83:56:F2:03), totalTime=10158

More Details below:

Install Deps

Download the latest release

Install bluetoothctl

# sudo apt install bluez
$ bluetoothctl --version
bluetoothctl: 5.64

Pair the Phone

Pair the phone as you commonly do, make sure to know what was the controller id used (see Discover uour Controller ID)

Discover your Controller ID aka Bluetooth Dongle ID

Discover your controller id, generally you will have only one, I have two, so you need to make sure to identify the one you paired with your headphone with, if not sure, unpair and pair again. 00:F0:83:56:F2:03 is mine.

bluetoothctl list
Controller 00:2A:7D:CA:71:0B bluetooth4_ [default]
Controller 00:F0:83:56:F2:03 bluetooth5 

Discover your Device ID / Phone ID

Discover your device ID, for example 94:CC:56:E5:72:85 is my headphone:

$ bluetoothctl
$ select 00:F0:83:56:F2:03
$ devices 
Device 94:CC:56:E5:72:85 WH-1000XM4

Requirements

• Linux
• JRE 11+

How it works

After buy a new bluetooth usb dongle, I noticed it was very difficult to make it connect to my headphones, also noticed if I restart the bluetooth service and try to connect sometimes it will work at some moment, so what I did was jut automate this process.

About the bluetooth issue root cause:

I wasn't able to find a real fix for the bluetooth problem, looks like it doesn't exist yet, all people advise to buy a new hardware at the end, then I made this program as a workaround.

Related issues

• https://bbs.archlinux.org/viewtopic.php?id=198718
• https://bbs.archlinux.org/viewtopic.php?id=270693
• https://bbs.archlinux.org/viewtopic.php?id=195886&p=2
• https://unix.stackexchange.com/questions/581974/alpine-linux-failed-to-start-discovery-org-bluez-error-inprogress

Compiling from source

$ ./gradlew build shadowJar