Bug 515725 - Bluetooth devices wont pair ( The setup of device has failed )
Summary: Bluetooth devices wont pair ( The setup of device has failed )
Status: REPORTED
Alias: None
Product: frameworks-bluez-qt
Classification: Frameworks and Libraries
Component: general (other bugs)
Version First Reported In: 6.22.0
Platform: openSUSE Linux
: NOR normal
Target Milestone: ---
Assignee: kdelibs bugs
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2026-02-08 14:52 UTC by Klaus-Dieter Fietze
Modified: 2026-02-11 09:17 UTC (History)
4 users (show)

See Also:
Latest Commit:
Version Fixed/Implemented In:
Sentry Crash Report:


Attachments
Jumping Slider (241.37 KB, video/mp4)
2026-02-08 14:52 UTC, Klaus-Dieter Fietze
Details
Output of journalctl bluetooth.service (4.83 KB, text/plain)
2026-02-09 12:26 UTC, Klaus-Dieter Fietze
Details
Screenshot of Bluetooth enabling (12.74 KB, image/png)
2026-02-09 12:31 UTC, Klaus-Dieter Fietze
Details
Output of journalctl bluetooth.service (26.31 KB, text/plain)
2026-02-10 10:28 UTC, Klaus-Dieter Fietze
Details
Output of bluetoothctl (7.66 KB, text/plain)
2026-02-10 14:28 UTC, Klaus-Dieter Fietze
Details

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Description Klaus-Dieter Fietze 2026-02-08 14:52:03 UTC
Created attachment 189356 [details]
Jumping Slider

SUMMARY
Impossible to pair any Bluetooth device

STEPS TO REPRODUCE
1. Open System Settings >> Bluetooth
2. Activate Bluetooth
3. Choose "Pair Device"
4. Activate pairing mode on the device to be paired
5. The device shows up in the window "Add Bluetooth Device"
6. Select the device, hit "Next"

OBSERVED RESULT
7. The message "Connecting to 'device ... '" shows up for a while
8. Next message "The setup of 'device ... ' has failed"

EXPECTED RESULT
The Bluetooth device should pair after a few seconds as it did in the past.

SOFTWARE/OS VERSIONS
Operating System: openSUSE Tumbleweed 20260206
KDE Plasma Version: 6.5.5
KDE Frameworks Version: 6.22.0
Qt Version: 6.10.2
Kernel Version: 6.18.8-1-default (64-bit)
Graphics Platform: Wayland
Graphics Processor: llvmpipe

ADDITIONAL INFORMATION
This strange behaviour is quite new. I update my system every Sunday. About two weeks ago, I was able to send files via Bluetooth from the desktop computer to Android smartphones. Now this does not work anymore. For me, this bug came in very recently.

I was able to pair using `bluetoothctl` but no connection is established. It jumps between "connected" and "disconnected".

As you can see from the attached video the status in "Bluetooth - System Settings" the "Enabled" slider jumps back and fro.
Comment 1 Arjen Hiemstra 2026-02-09 10:52:04 UTC
This looks like it's a problem at a lower level than Plasma's bluetooth configuration, especially since apparently the Bluetooth service's status cannot be correctly read.

To start figuring things out, we will need the logs of your bluetooth service. You can get those with `journalctl --unit bluetooth.service`.
Comment 2 Klaus-Dieter Fietze 2026-02-09 12:26:20 UTC
Created attachment 189387 [details]
Output of journalctl bluetooth.service

Thank you very much indeed for addressing my problem so quickly ! I’m also very grateful for your hints about how to get to the bottom of the cause !
You will find the today’s log of the Bluetooth service in the attached file.
How did I proceed ? I opened Bluetooth from the task bar in “Status and Notifications” and I enabled Bluetooth with the slider (see screenshot).
Let me know if you need more information.
Best regards !
Comment 3 Klaus-Dieter Fietze 2026-02-09 12:31:11 UTC
Created attachment 189388 [details]
Screenshot of Bluetooth enabling
Comment 4 TraceyC 2026-02-09 16:42:22 UTC
Thanks for the logs. Can you also try pairing your device through command line with bluetoothctl? This will give us some additional detail to help figure out what's happening.

1. `sudo systemctl restart bluetooth`
2. `bluetoothctl`
3. `scan on`
4. Write down the MAC for the device: `[bluetooth]# [NEW] Device 88:C9:XXXXXX Device-name
5. `connect <MAC>`
6. `quit`

Please reply with your results. Thanks.
Comment 5 Klaus-Dieter Fietze 2026-02-10 10:28:11 UTC
Created attachment 189432 [details]
Output of journalctl bluetooth.service

Thank you for your continued help !
As you can see, I attempted several times. The last time it seemed that the connection would be established, but ultimately it failed.
I hope the log contains the details you expect. If not, just let me know what further tests I can do.
Best regards !
Comment 6 Klaus-Dieter Fietze 2026-02-10 14:28:29 UTC
Created attachment 189437 [details]
Output of bluetoothctl

I thought you might be interested in the terminal output, too, i.e. what is written on the terminal when I follow your instructions.
Hint: At some point, a message flashed up containing “WirePlumber”, but I was not able to read the whole content.
At the end of the procedure, the headphones are listed in “Available” but not connected; the system tray keeps on jumping until I disable Bluetooth with the slider.
Best regards !