Bluetooth speaker connected over A2DP, but no audio output from kernel 6.15.5 onwards

Ask Fedora
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1

Hi everyone,

I’m running Fedora 42 and noticed a Bluetooth audio issue that started with kernel 6.15.5-200, and still persists in 6.15.7-200.

My Tribit XSound Go Bluetooth speaker connects just fine, is selectable as an output device in GNOME, and shows up correctly in pw-cli as an a2dp-sink. However, there’s no audio output when it’s set to A2DP mode.

If I switch the profile to HSP/HFP (handsfree), audio plays normally — though with lower quality, of course.

This issue only happens with this particular Bluetooth speaker. My Bluetooth earbuds work fine over A2DP on the same system and kernels.

Booting back into kernel 6.15.4-200 restores normal A2DP audio with the Tribit speaker, no changes needed.

In kernels 6.15.5 and 6.15.7, I consistently see this message in dmesg:

Bluetooth: hci0: SCO packet for unknown connection handle 257

Everything else — connection, profile, PipeWire routes — looks normal.

Is anyone else running into this with a similar setup or device? Should I go ahead and file a bug report?

Thanks.

Issues with bluetooth on KDE Plasma
3

This sounds like a regression and should be reported as a bug on the newer kernels.

4

Bugzilla report

5

I’m expecting this is somehow related:

This too:

6

I think it is now fixed in 6.15.8. The issue is no longer happening on my side after upgrading.