pulseaudio sound not working, coincides with brightness controller not working and screen flickering, occurred when computer attempted to go idle and instead flickered and crashed these applets

[Jeremy]

Description: Ubuntu 22.04.4 LTS
Release: 22.04

pulseaudio:
  Installed: 1:15.99.1+dfsg1-1ubuntu2.1
  Candidate: 1:15.99.1+dfsg1-1ubuntu2.1
  Version table:
 *** 1:15.99.1+dfsg1-1ubuntu2.1 500
        500 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     1:15.99.1+dfsg1-1ubuntu1 500
        500 http://archive.ubuntu.com/ubuntu jammy/main amd64 Packages

I expected the computer to idle down and instead the computer did not idle down and chose to flicker the brightness from dim to dark to 100% and the audio stopped working. Keeping the dimmer on about 5% keeps the brightness at 100% and stops the flickering. Bluetooth audio speaker works.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: pulseaudio 1:15.99.1+dfsg1-1ubuntu2.1
ProcVersionSignature: Ubuntu 6.5.0-18.18~22.04.1-generic 6.5.8
Uname: Linux 6.5.0-18-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CasperMD5CheckResult: pass
Date: Thu Feb 22 03:17:38 2024
ExecutablePath: /usr/bin/pulseaudio
InstallationDate: Installed on 2023-10-18 (126 days ago)
InstallationMedia: Ubuntu 22.04.3 LTS "Jammy Jellyfish" - Release amd64 (20230807.2)
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 XDG_RUNTIME_DIR=<set>
SourcePackage: pulseaudio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/28/2022
dmi.bios.release: 1.57
dmi.bios.vendor: HP
dmi.bios.version: N75 Ver. 01.57
dmi.board.name: 8079
dmi.board.vendor: HP
dmi.board.version: KBC Version 85.79
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.ec.firmware.release: 133.121
dmi.modalias: dmi:bvnHP:bvrN75Ver.01.57:bd07/28/2022:br1.57:efr133.121:svnHP:pnHPEliteBook840G3:pvr:rvnHP:rn8079:rvrKBCVersion85.79:cvnHP:ct10:cvr:sku1DV78US#ABA:
dmi.product.family: 103C_5336AN HP EliteBook
dmi.product.name: HP EliteBook 840 G3
dmi.product.sku: 1DV78US#ABA
dmi.sys.vendor: HP