PulseAudio fails to start: Module "module-jackdbus-detect" should be loaded once at most

Sponsors: A fixed branch is already at lp:~ubuntu-audio-dev/pulseaudio/ubuntu.oneiric - please upload branch

If pulseaudio-module-jack is installed, pulseaudio will fail to load with error

E: [pulseaudio] module.c: Module "module-jackdbus-detect" should be loaded once at most. Refusing to load.
E: [pulseaudio] main.c: Module load failed.
E: [pulseaudio] main.c: Failed to initialize daemon.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: pulseaudio 1:0.99.3-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-10.16~diwicv1-generic 3.0.4
Uname: Linux 3.0.0-10-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/controlC3', '/dev/snd/hwC3D0', '/dev/snd/hwC3D1', '/dev/snd/hwC3D2', '/dev/snd/hwC3D3', '/dev/snd/pcmC3D3p', '/dev/snd/pcmC3D7p', '/dev/snd/pcmC3D8p', '/dev/snd/pcmC3D9p', '/dev/snd/by-id', '/dev/snd/controlC2', '/dev/snd/pcmC2D0c', '/dev/snd/pcmC2D0p', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/pcmC1D0c', '/dev/snd/pcmC1D0p', '/dev/snd/pcmC1D1c', '/dev/snd/pcmC1D1p', '/dev/snd/midiC1D0', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1c', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D2c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
Card0.Amixer.info:
 Card hw:0 'SB'/'HDA ATI SB at 0xfe024000 irq 16'
   Mixer name : 'Realtek ALC888'
   Components : 'HDA:10ec0888,1458e601,00100001'
   Controls : 40
   Simple ctrls : 22
Card1.Amixer.info:
 Card hw:1 'Juli'/'ESI Juli@ at 0xcf00, irq 21'
   Mixer name : 'ICE1724 - multitrack'
   Components : ''
   Controls : 36
   Simple ctrls : 14
Card2.Amixer.info:
 Card hw:2 'Headset'/'Logitech Logitech USB Headset at usb-0000:00:12.0-1, full speed'
   Mixer name : 'USB Mixer'
   Components : 'USB046d:0a0c'
   Controls : 6
   Simple ctrls : 2
Card3.Amixer.info:
 Card hw:3 'NVidia'/'HDA NVidia at 0xfcffc000 irq 19'
   Mixer name : 'Nvidia GPU 14 HDMI/DP'
   Components : 'HDA:10de0014,10de0101,00100100'
   Controls : 16
   Simple ctrls : 4
Date: Mon Sep 5 11:02:17 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110802.1)
PulseSinks: Error: command ['pacmd', 'list-sinks'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
PulseSources: Error: command ['pacmd', 'list-sources'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
SourcePackage: pulseaudio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/24/2009
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F2
dmi.board.name: GA-MA770T-UD3P
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF2:bd06/24/2009:svnGigabyteTechnologyCo.,Ltd.:pnGA-MA770T-UD3P:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnGA-MA770T-UD3P:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: GA-MA770T-UD3P
dmi.sys.vendor: Gigabyte Technology Co., Ltd.