sound does not switch to bluetooth speakers automatically after connecting

[Tomislav]

I connect to a bluetooth speaker.

Observed behaviour: connection established, but sound still continues to come from the built-in speakers and when looking at available sound outputs in the gnome-control-center, there are no new outputs.

Expected behaviour: connection established, sound output switches to BT speaker automatically, new sound output device visible in sound settings

Workaround: disconnect and reconnect a few times, after which everything seems to work

The BT speaker is a actually the F900 2 Channel Amp Bluetooth Amplifier feeding regular wired speakers behind it.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.15.0-108.109-generic 4.15.18
Uname: Linux 4.15.0-108-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.15
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: tnalfir 2036 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Fri Jul 10 13:33:04 2020
InstallationDate: Installed on 2017-02-18 (1237 days ago)
InstallationMedia: Ubuntu 14.04.5 LTS "Trusty Tahr" - Release amd64 (20160803)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Title: Bluetooth sound card not detected
UpgradeStatus: Upgraded to bionic on 2020-05-10 (60 days ago)
dmi.bios.date: 06/15/2016
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.7.3
dmi.board.asset.tag: 201710275
dmi.board.name: 0R3VX4
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.asset.tag: 201710275
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.7.3:bd06/15/2016:svnDellInc.:pnLatitudeE5570:pvr:rvnDellInc.:rn0R3VX4:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E5570
dmi.sys.vendor: Dell Inc.