Can you open a terminal and share the output of the following.
Code:
lsusb | grep -i bluetooth
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For once you get it working if you need a bluetooth headset working, since I already typed it out since I misread your question.
You probably need to install the following packages.
Code:
sudo apt install bluetooth pulseaudio-module-bluetooth blueman
Then
Code:
sudo enable bluetooth
sudo start bluetooth
Then reboot your system, after you have rebooted.
1. Open bluemanager through the menu and where ever you task bar is a bluetooth icon will appear.
2. Enable bluetooth: Right click on the bluetooth icon and select enable.
3. Turn on the bluetooth device which you want to connect to so that your bluetooth adapther can find it.
4. Go to devices: Right click on bluetooth icon and select devices.
5. Search: Click on search on the magnifying glass
6. When your device shows up right click and connect, you may need to pair it first.
7. When it's connected it should show up in the audiomixer.