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I have a pair of Bose QC 45 headphones. I am using Ubuntu 22.04 on my PC. I didn't originally have a Bluetooth adapter, so I bought a UGREEN CM390. It works great out of the box, I tested it with my phone.

The problem is in connecting the headphones to the computer. I can see them through the Bluetooth interface, but when I try to connect them to the computer, it just says they are connected. But in fact, they aren't (no voice confirmation that they are connected).

What I've tried so far:

  • All the steps in this question: Pair Bose QuietComfort 35 with Ubuntu over Bluetooth

  • Download the blueman program and connect through it.

  • Manually remove the device and reconnect it using bluetoothctl.

  • Use the Bose music app and turn on pairing mode to find the new connection.

  • Test the Bluetooth dongle w/ headphones on Windows (all works fine)

My guess is that the problem is in the drivers or in the protocol itself (the UGREEN CM390 uses Bluetooth version 5.3).

If you have any suggestions, I would greatly appreciate it! Thank you!

Imposs1ble
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1 Answers1

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I was having an issue connecting my QC 45s with Ubuntu 22.04 as well, so maybe my solution will work for you or someone else with this issue.

Some differences -- I don't have an adapter. I do get a confirmation that my headphones are connected, which blueman confirms. However, they are not shown in sound settings and are thus not available.

I tried several things but couldn't get anything to work except the following simple, albeit manual, process.

  1. Restart the bluetooth service. I have an alias set for this.
$ sudo systemctl restart bluetooth
  1. Right click on them in blueman and connect.

A simple solution to test, so definitely worth a shot.

Jeff_V
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