Thanks for the tip.  I uninstalled the "Sound Input & Output Device
Chooser" extension and it does not seem to crash when disconnecting now.

I suppose I should get in touch with the extension's developer and file
a bug?

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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gnome-shell in Ubuntu.
https://bugs.launchpad.net/bugs/1879453

Title:
  gnome-shell crashes with SEGV in gvc_mixer_card_get_profile() from
  gvc_mixer_ui_device_get_active_profile() when Bluetooth headphone
  (Sony WH-1000XM3) is disconnected

Status in gnome-shell package in Ubuntu:
  Incomplete

Bug description:
  - Connect bluetooth headphone to ubuntu 20.04 laptop.
  - Disconnect (using blueman or switching off headphone)
  - gnome-shell crashes. It restarts under X11, and goes to login screen under 
Wayland.
  - Was working fine in ubuntu 19.10

  - Same as https://bugs.launchpad.net/ubuntu/+source/gnome-
  shell/+bug/1879044  -- I am submitting a new bug to provide additional
  crash information, as requested.

  The cause maybe not gnome-shell itself, but this where it manifests.

  Thanks,

  Manuel

  ProblemType: Crash
  DistroRelease: Ubuntu 20.04
  Package: gnome-shell 3.36.1-5ubuntu2
  ProcVersionSignature: Ubuntu 5.4.0-31.35-generic 5.4.34
  Uname: Linux 5.4.0-31-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  Date: Tue May 19 09:43:20 2020
  DisplayManager: gdm3
  ExecutablePath: /usr/bin/gnome-shell
  ExecutableTimestamp: 1587469721
  GsettingsChanges:
   
  InstallationDate: Installed on 2019-03-26 (419 days ago)
  InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 
(20181017.3)
  ProcCmdline: /usr/bin/gnome-shell
  ProcCwd: /home/mcarro
  RelatedPackageVersions: mutter-common 3.36.1-3ubuntu3
  SegvAnalysis: Skipped: missing required field "Disassembly"
  Signal: 11
  SourcePackage: gnome-shell
  StacktraceTop:
   __GI_raise (sig=<optimized out>) at ../sysdeps/unix/sysv/linux/raise.c:50
   ()
   <signal handler called> () at /lib/x86_64-linux-gnu/libc.so.6
   gvc_mixer_card_get_profile () at /usr/lib/gnome-shell/libgvc.so
   gvc_mixer_ui_device_get_active_profile () at /usr/lib/gnome-shell/libgvc.so
  UpgradeStatus: Upgraded to focal on 2020-05-08 (10 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  modified.conffile..etc.apport.crashdb.conf: [modified]
  mtime.conffile..etc.apport.crashdb.conf: 2020-05-19T09:25:44.825919
  separator:

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