Investigating bug #922656 made me notice in the PulseAudio log that one command option is missing from the defaults expected for System mode operation. The attached patch adds it and cleans some trailing white space off elsewhere in the init script, in the same process.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: pulseaudio 1:1.1-0ubuntu5
ProcVersionSignature: Ubuntu 3.2.0-11.19-generic 3.2.1
Uname: Linux 3.2.0-11-generic i586
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Audio [CS5535 Audio], device 0: CS5535 Audio [CS5535 Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
ApportVersion: 1.91-0ubuntu1
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Audio [CS5535 Audio], device 0: CS5535 Audio [CS5535 Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
Card0.Amixer.info:
Card hw:0 'Audio'/'CS5535 Audio cs5535audio at 0xfe00, irq 11'
Mixer name : 'Realtek ALC203 rev 0'
Components : 'AC97a:414c4770'
Controls : 33
Simple ctrls : 21
Date: Fri Jan 27 23:40:44 2012
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: 11/08/2007
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: 6.00 PG
dmi.board.name: ION603
dmi.board.vendor: First International Computer, Inc.
dmi.board.version: PCB 2.X
dmi.chassis.type: 3
dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd11/08/2007:svnFirstInternationalComputer,Inc.:pnION603:pvrVER2.X:rvnFirstInternationalComputer,Inc.:rnION603:rvrPCB2.X:cvn:ct3:cvr:
dmi.product.name: ION603
dmi.product.version: VER 2.X
dmi.sys.vendor: First International Computer, Inc.
modified.conffile..etc.default.pulseaudio: [modified]
modified.conffile..etc.init.d.pulseaudio: [modified]
modified.conffile..etc.pulse.daemon.conf: [modified]
modified.conffile..etc.pulse.system.pa: [modified]
mtime.conffile..etc.default.pulseaudio: 2011-11-23T16:51:58.017364
mtime.conffile..etc.init.d.pulseaudio: 2012-01-27T23:38:23.437587
mtime.conffile..etc.pulse.daemon.conf: 2011-09-29T05:06:13.135192
mtime.conffile..etc.pulse.system.pa: 2011-09-29T05:08:04.351192
Pushed to the packaging branch, to be fix released at next PA upload. Thank you for your contribution!