Dear Maintainer,

gnome-shell currently crashes whenever a Bluetooth headset is connected.
(In my case, a Sony WH-1000XM3.) In the system log, messages along these lines can be found:

Jan 27 14:08:47 arc gnome-shell[3022]: Gvc:ERROR:../subprojects/gvc/gvc-mixer-stream.c:535:gvc_mixer_stream_get_port: code should not be reached
Jan 27 14:08:47 arc gnome-shell[3022]: Bail out! Gvc:ERROR:../subprojects/gvc/gvc-mixer-stream.c:535:gvc_mixer_stream_get_port: code should not be reached
Jan 27 14:08:47 arc gnome-shell[3022]: == Stack trace for context 0x557838b42680 ==

It appears that this issue in the Red Hat tracker reflects the same problem:

https://bugzilla.redhat.com/show_bug.cgi?id=2431525

In addition, it appears that a fix for this is available upstream, linked in
that tracker entry. It would be nice if this fix could be made available in
Debian.

Thanks!
Andreas

Control: clone -1 -2 -3 -4 -5 -6 -7 -8
Control: reassign -2 gnome-control-center 1:49.3-1
Control: retitle -2 gnome-control-center: Possible assertion failure on Bluetooth headset connection
Control: close -2 1:49.4-1
Control: reassign -3 phosh-mobile-setttings
Control: retitle -3 phosh-mobile-settings: Possible assertion failure on Bluetooth headset connection
Control: reassign -4 phosh
Control: retitle -4 phosh: Possible assertion failure on Bluetooth headset connection
Control: close -4 0.52.1-1
Control: reassign -5 gnome-flashback
Control: retitle -5 gnome-flashback: Possible assertion failure on Bluetooth headset connection
Control: reassign -6 gnome-settings-daemon
Control: retitle -6 gnome-settings-daemon: Possible assertion failure on Bluetooth headset connection
Control: forwarded -6 https://gitlab.gnome.org/GNOME/gnome-settings-daemon/-/merge_requests/468
Control: reassign -7 wf-shell
Control: retitle -7 wf-shell: Possible assertion failure on Bluetooth headset connection
Control: reassign -8 budgie-control-center
Control: retitle -8 budgie-control-center: Possible assertion failure on Bluetooth headset connection
...
https://gitlab.gnome.org/GNOME/libgnome-volume-control/-/merge_requests/31
which fixes
https://gitlab.gnome.org/GNOME/libgnome-volume-control/-/issues/34.

I'm surprised that you're seeing this without using pipewire from
experimental - the upstream issue report implies that it's a regression
with newer pipewire? But your bug report seems to indicate that you're
using testing/unstable pipewire?

This is a bug in a "copylib" that is not packaged separately because it
has an unstable API/ABI (libgvc), so unfortunately it needs to be fixed
in multiple places.

For gnome-shell let's use the original bug #1126514.

gnome-control-center is fixed in 1:49.4-1 so we just need to let it
migrate. Similarly phosh seems to be fixed already.

gnome-settings-daemon, gnome-flashback, phosh-mobile-settings, wf-shell
and budgie-control-center also have copies of libgvc which should be
checked and potentially updated. gnome-settings-daemon was already fixed
upstream in the main branch, but not in v49 yet.

Similar code (a fork) is present in cinnamon-desktop, although it isn't
*exactly* the same codebase. Cinnamon team: please check whether
Cinnamon also crashes when a Bluetooth headset is connected while using
Pipewire for audio; if it does, libcvc will likely need to pick up
changes from libgvc. I haven't cloned the bug for cinnamon in case it's
unaffected, I don't know how far away libcvc is forked.

     smcv

Control: clone -1 -2
Control: reassign -2 cinnamon
Control: retitle -2 cinnamon: Assertion failure in libcvc on Bluetooth headset connection
Control: forwarded -2 https://github.com/linuxmint/Cinnamon/issues/13339
[... some other packages ...]

Sorry, forgot to cc the Cinnamon team in the previous mail to this bug.

It looks like Cinnamon does have this issue too (there's an upstream bug
report), so I'm cloning the bug one more time.

     smcv

This is solved in https://github.com/linuxmint/cinnamon-desktop/commit/2d4f3560ae4abf15ecefafc2d8c8178a92a54dea