Audio not longer coming out of inbuilt speakers after swapping to bluetooth audio

[Paul]

In built audio was working fine. Connected bluetooth headphones which also worked fine. On disconnect the audio no longer comes out of speakers. I have rebooted, checked mute etc.

ProblemType: Bug
DistroRelease: Ubuntu 23.10
Package: alsa-base 1.0.25+dfsg-0ubuntu7
ProcVersionSignature: Ubuntu 6.5.0-5.5-generic 6.5.0
Uname: Linux 6.5.0-5-generic x86_64
ApportVersion: 2.27.0-0ubuntu4
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: pt 2322 F.... pipewire
                      pt 2326 F.... wireplumber
 /dev/snd/seq: pt 2322 F.... pipewire
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Thu Oct 5 10:52:22 2023
InstallationDate: Installed on 2023-09-28 (7 days ago)
InstallationMedia: Ubuntu 23.10 "Mantic Minotaur" - Beta amd64 (20230919.1)
PackageArchitecture: all
ProcEnviron:
 LANG=en_US.UTF-8
 LD_PRELOAD=<set>
 PATH=(custom, no user)
 SHELL=/bin/bash
 XDG_RUNTIME_DIR=<set>
RebootRequiredPkgs: Error: path contained symlinks.
SourcePackage: alsa-driver
Symptom: audio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/02/2023
dmi.bios.release: 1.37
dmi.bios.vendor: LENOVO
dmi.bios.version: N3AET72W (1.37 )
dmi.board.asset.tag: Not Available
dmi.board.name: 21CBCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: Not Defined
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 1.21
dmi.modalias: dmi:bvnLENOVO:bvrN3AET72W(1.37):bd03/02/2023:br1.37:efr1.21:svnLENOVO:pn21CBCTO1WW:pvrThinkPadX1CarbonGen10:rvnLENOVO:rn21CBCTO1WW:rvrNotDefined:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_21CB_BU_Think_FM_ThinkPadX1CarbonGen10:
dmi.product.family: ThinkPad X1 Carbon Gen 10
dmi.product.name: 21CBCTO1WW
dmi.product.sku: LENOVO_MT_21CB_BU_Think_FM_ThinkPad X1 Carbon Gen 10
dmi.product.version: ThinkPad X1 Carbon Gen 10
dmi.sys.vendor: LENOVO