Ubuntu 11.10.
I tried adding the following options to alsa-base.conf and rebooting - it makes no difference.
options snd-hda-intel model=dell-m6 enable_msi=1
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: alsa-base 1.0.24+dfsg-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-16.28-generic-pae 3.0.17
Uname: Linux 3.0.0-16-generic-pae i686
NonfreeKernelModules: fglrx
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu4
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tcouper 1868 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xfc400000 irq 48'
Mixer name : 'IDT 92HD73C1X5'
Components : 'HDA:111d7675,10280272,00100103'
Controls : 16
Simple ctrls : 10
Card1.Amixer.info:
Card hw:1 'HDMI'/'HDA ATI HDMI at 0xcfeec000 irq 49'
Mixer name : 'ATI R6xx HDMI'
Components : 'HDA:1002aa01,00aa0100,00100000'
Controls : 4
Simple ctrls : 1
Card1.Amixer.values:
Simple mixer control 'IEC958',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
Date: Thu Mar 8 20:48:13 2012
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
PackageArchitecture: all
ProcEnviron:
LANGUAGE=en_GB:en
PATH=(custom, no user)
LANG=en_GB.UTF-8
SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:Intel failed
Symptom_Card: Internal Audio - HDA Intel
Symptom_Jack: Speaker, Internal
Symptom_Type: No sound at all
Title: [Studio XPS 1640, IDT 92HD73C1X5, Speaker, Internal] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/07/2009
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A07
dmi.board.name: 0W497D
dmi.board.vendor: Dell Inc.
dmi.board.version: A07
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A07
dmi.modalias: dmi:bvnDellInc.:bvrA07:bd05/07/2009:svnDellInc.:pnStudioXPS1640:pvrA073:rvnDellInc.:rn0W497D:rvrA07:cvnDellInc.:ct8:cvrA07:
dmi.product.name: Studio XPS 1640
dmi.product.version: A073
dmi.sys.vendor: Dell Inc.
mtime.conffile..etc.modprobe.d.alsa.base.conf: 2012-03-08T20:36:21.840994
Status changed to 'Confirmed' because the bug affects multiple users.