Bluetooth headphones no sound

Hardware Support
1

Hi newbie here.
The installation was fine. Yesterday I tried to connect to my headphones. The Sony (WH-1000XM2) where not able to connecte at all. My earbuds (Nothing ear) were connecting but gave no sound output.
Thus, I searched and tried the hints installing

blueman

and also installed

PulseAudio

More internet search brought me to this page, suggesting I should comment several lines inside of PulseAudio.

In that case, the comment symbol we use is the pound #.

It worked so far, that I have sound with the earbuds, but only mono - not stereo.
Any other suggestions from experienced users are welcome.

2

Does Your system run in Wayland or X11/Xorg? You can check that in Settings>About. You could try to switch from one to the other and check if it works.

Another Thing: Could You post Screenshots from the Output Tab and the Configuration tab in Pulse Audio?

3

Thanks @Ponce-De-Leon the switch from Wayland to Xorg solved it instantly for the earbuds.

Remains the additional issue that the headphones are constantly connecting & disconnecting.
Something to solve for tomorrow :roll_eyes:

4

Are these connected with a Dongle or directly to a built-in Bluetooth Module in Your Machine?

5

It is a built-in BT module of a Acer Switch 5 (form 2018)
I will later read & try some of this
https://askubuntu.com/questions/1331009/bluetooth-on-ubuntu-20-04-constantly-disconnecting
or

or
https://forums.linuxmint.com/viewtopic.php?t=411105

6

Hmm, yesterday none of the two devices wanted to connect.
I start to believe it is hardware related. Build in is a card of Qualcomm QCA6174a. About it I found the following information and will read and try it later.
https://manuals.plus/m/716f615f1c97924142bcef2f91ee2b737c0918b984a805820b38c2d2da85f1d3

Download the package from the Qualcomm® Developer Network (QDN), https://developer.Qualcomm.com/. The package consists of the following components:
Firmware binary code for WLAN and Bluetooth
AIO, which is a group of scripts used to help build the proper host driver and set of application tools. Porting guide for x86 Ubuntu platform (this document)

Still, it is a bit strange, as they describe issues with kernel versions 4.4.15, 4.9.11, and 4.11. The patches might not work if applied to other kernel versions.
As my Zorin Core 17.3 is using much newer kernel 6.08.5 I would believed that this "known" issue might have been taken up and solved.

Is it worth of trying this:

$ git clone git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-
stable.git
$ cd linux-stable
$ git checkout v4.4.15 (change to v.6.8.5)

7

Looks like this helped:

  1. Check if the Bluetooth service is running. Run the command systemctl status bluetooth to see the status of the Bluetooth service. If it is not running, you can start it by running sudo systemctl start bluetooth.
  2. Verify that the necessary Bluetooth packages are installed. Run the command sudo apt list --installed | grep blue to check if the required Bluetooth packages are installed. If any packages are missing, you can install them using sudo apt install <package-name>.
  3. Try resetting the Bluetooth adapter. Run the command sudo hciconfig hci0 reset to reset the Bluetooth adapter. This can sometimes resolve connectivity issues.
  4. Check if there are any conflicting services or processes. Run the command sudo systemctl list-units | grep -i bluetooth to see if there are any other Bluetooth-related services running. If there are, you may need to stop or disable them to avoid conflicts.
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