[Bug 2080737] [NEW] One out of two times, the bluetooth audio doesn't register

[udippel]

Public bug reported:

Since the release update from 22.4 to 24.4.1, everything else unchanged, my bluetooth audio fails in one out of two cases. 
Usually, I used to turn it on by turning on my Bose Solo 5. Then, it was set to be the primary audio drain. 

It is clear that a defect exists, because:
1. The panel shows the buetooth as connected to Bose Solo 5, including the 'connect' icon.
2. It is impossible, however, to "Disconnect", irrespective how often I click the "Disconnect". Also when I switch off the Bose system, it remains "connected" until the system is shut down or crashes. 
3. Neither in the audio drain selection, nor in the PulseAudio Volume Control is the Bose System 5 to be seen. 

One of of two cases, after starting the system, it works okay (like it had been doing for years with earlier kubuntu distributions). So far I was not able to detect circumstances under which it would (not) work. 
I attach a screenshot showing the 'connected' status, while the drain remains inaccessible.

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: bluedevil 4:5.27.11-0ubuntu2
ProcVersionSignature: Ubuntu 6.8.0-44.44-generic 6.8.12
Uname: Linux 6.8.0-44-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.1
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Sat Sep 14 21:17:55 2024
InstallationDate: Installed on 2019-02-16 (2037 days ago)
InstallationMedia: Kubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
SourcePackage: bluedevil
UpgradeStatus: Upgraded to noble on 2024-08-30 (15 days ago)
mtime.conffile..etc.init.d.apport: 2024-07-22T16:59:07

** Affects: bluedevil (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug noble

** Attachment added: "No hoice of Bluetooth device possible"
   https://bugs.launchpad.net/bugs/2080737/+attachment/5817290/+files/Screenshot_20240914_213303.png

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Title:
  One out of two times, the bluetooth audio doesn't register

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