Public bug reported:

I have a bluetooth usb dongle using btusb with ID: 0bda:2550, what seems
to be an RTL8761.

The bug is as follows:

🐞 Again and yet again, the bluetooth connection to my mouse freezes


➡️ [Solution #1] Switch off/on bluetooth in settings (kcm_bluetooth?)

➡️ [Solution #2] - if solution #1 didn't do the trick:
Go to text-tty (strg-Alt+f1) and go back to Xorg again. Then i get a message, 
that kwin had to reload

➡️ [Solution #3] - if solution #2 didn't do the trick:
➡️ Hard unplug and plug in again the dongle && disable && enable bluetooth in 
settings

Unfortunately, I don't see any messages in journalctl, so i guess, this
must be something related to KDE/Plasma?

ProblemType: Bug
DistroRelease: Ubuntu 23.10
Package: bluedevil 4:5.27.8-0ubuntu1
ProcVersionSignature: Ubuntu 6.5.0-14.14-generic 6.5.3
Uname: Linux 6.5.0-14-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.27.0-0ubuntu5
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: KDE
Date: Fri Jan 26 15:10:55 2024
InstallationDate: Installed on 2023-11-03 (84 days ago)
InstallationMedia: Kubuntu 23.10 "Mantic Minotaur" - Release amd64 (20231010)
SourcePackage: bluedevil
UpgradeStatus: No upgrade log present (probably fresh install)

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


** Tags: amd64 apport-bug mantic

** Description changed:

  I have a bluetooth usb dongle using btusb with ID: 0bda:2550, what seems
  to be an RTL8761.
  
- The two bugs are as follows:
+ The bug is as follows:
  
  🐞 Again and yet again, the bluetooth connection to my mouse freezes
  
  ➡️ [Solution #1] Switch off/on bluetooth in settings (kcm_bluetooth?)
  
  ➡️ [Solution #2] - if solution #1 didn't do the trick:
  Go to text-tty (strg-Alt+f1) and go back to Xorg again. Then i get a message, 
that kwin had to reload and mouse works again
  
  ➡️ [Solution #3] - if solution #1 didn't do the trick:
  ➡️ Hard unplug and plug in again the dongle && disable && enable bluetooth in 
settings
  
  Unfortunately, I don'T see any messages in journalctl, so i guess, this
  must be something related to KDE/Plasma?
  
  ProblemType: Bug
  DistroRelease: Ubuntu 23.10
  Package: bluedevil 4:5.27.8-0ubuntu1
  ProcVersionSignature: Ubuntu 6.5.0-14.14-generic 6.5.3
  Uname: Linux 6.5.0-14-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.27.0-0ubuntu5
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: KDE
  Date: Fri Jan 26 15:10:55 2024
  InstallationDate: Installed on 2023-11-03 (84 days ago)
  InstallationMedia: Kubuntu 23.10 "Mantic Minotaur" - Release amd64 (20231010)
  SourcePackage: bluedevil
  UpgradeStatus: No upgrade log present (probably fresh install)

** Description changed:

  I have a bluetooth usb dongle using btusb with ID: 0bda:2550, what seems
  to be an RTL8761.
  
  The bug is as follows:
  
  🐞 Again and yet again, the bluetooth connection to my mouse freezes
  
+ 
  ➡️ [Solution #1] Switch off/on bluetooth in settings (kcm_bluetooth?)
  
  ➡️ [Solution #2] - if solution #1 didn't do the trick:
- Go to text-tty (strg-Alt+f1) and go back to Xorg again. Then i get a message, 
that kwin had to reload and mouse works again
+ Go to text-tty (strg-Alt+f1) and go back to Xorg again. Then i get a message, 
that kwin had to reload
  
- ➡️ [Solution #3] - if solution #1 didn't do the trick:
+ ➡️ [Solution #3] - if solution #2 didn't do the trick:
  ➡️ Hard unplug and plug in again the dongle && disable && enable bluetooth in 
settings
  
- Unfortunately, I don'T see any messages in journalctl, so i guess, this
+ Unfortunately, I don't see any messages in journalctl, so i guess, this
  must be something related to KDE/Plasma?
  
  ProblemType: Bug
  DistroRelease: Ubuntu 23.10
  Package: bluedevil 4:5.27.8-0ubuntu1
  ProcVersionSignature: Ubuntu 6.5.0-14.14-generic 6.5.3
  Uname: Linux 6.5.0-14-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.27.0-0ubuntu5
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: KDE
  Date: Fri Jan 26 15:10:55 2024
  InstallationDate: Installed on 2023-11-03 (84 days ago)
  InstallationMedia: Kubuntu 23.10 "Mantic Minotaur" - Release amd64 (20231010)
  SourcePackage: bluedevil
  UpgradeStatus: No upgrade log present (probably fresh install)

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Bugs, which is subscribed to bluedevil in Ubuntu.
https://bugs.launchpad.net/bugs/2051372

Title:
  KDE Buetooth is unpredictable unstable

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