Public bug reported:

Here is my system:
$ uname -r
3.5.0-37-generic

$ lspci
00:00.0 Host bridge: NVIDIA Corporation MCP79 Host Bridge (rev b1)
00:00.1 RAM memory: NVIDIA Corporation MCP79 Memory Controller (rev b1)
00:03.0 ISA bridge: NVIDIA Corporation MCP79 LPC Bridge (rev b2)
00:03.1 RAM memory: NVIDIA Corporation MCP79 Memory Controller (rev b1)
00:03.2 SMBus: NVIDIA Corporation MCP79 SMBus (rev b1)
00:03.3 RAM memory: NVIDIA Corporation MCP79 Memory Controller (rev b1)
00:03.4 RAM memory: NVIDIA Corporation Device 0a98 (rev b1)
00:03.5 Co-processor: NVIDIA Corporation MCP79 Co-processor (rev b1)
00:04.0 USB controller: NVIDIA Corporation MCP79 OHCI USB 1.1 Controller (rev 
b1)
00:04.1 USB controller: NVIDIA Corporation MCP79 EHCI USB 2.0 Controller (rev 
b1)
00:06.0 USB controller: NVIDIA Corporation MCP79 OHCI USB 1.1 Controller (rev 
b1)
00:06.1 USB controller: NVIDIA Corporation MCP79 EHCI USB 2.0 Controller (rev 
b1)
00:08.0 Audio device: NVIDIA Corporation MCP79 High Definition Audio (rev b1)
00:09.0 PCI bridge: NVIDIA Corporation MCP79 PCI Bridge (rev b1)
00:0a.0 Ethernet controller: NVIDIA Corporation MCP79 Ethernet (rev b1)
00:0b.0 SATA controller: NVIDIA Corporation MCP79 AHCI Controller (rev b1)
00:0c.0 PCI bridge: NVIDIA Corporation MCP79 PCI Express Bridge (rev b1)
00:10.0 PCI bridge: NVIDIA Corporation MCP79 PCI Express Bridge (rev b1)
00:15.0 PCI bridge: NVIDIA Corporation MCP79 PCI Express Bridge (rev b1)
00:16.0 PCI bridge: NVIDIA Corporation MCP79 PCI Express Bridge (rev b1)
00:17.0 PCI bridge: NVIDIA Corporation MCP79 PCI Express Bridge (rev b1)
00:18.0 PCI bridge: NVIDIA Corporation MCP79 PCI Express Bridge (rev b1)
03:00.0 VGA compatible controller: NVIDIA Corporation C79 [GeForce 9300] (rev 
b1)
04:00.0 Multimedia video controller: NEC Corporation Device 0165 (rev 0b)
06:00.0 Network controller: Ralink corp. RT3092 Wireless 802.11n 2T/2R PCIe

$ cat /proc/asound/cards
 0 [NVidia         ]: HDA-Intel - HDA NVidia
                      HDA NVidia at 0xfae78000 irq 22

$ lshw -C sound
  *-multimedia            
       description: Audio device
       product: MCP79 High Definition Audio
       vendor: NVIDIA Corporation
       physical id: 8
       bus info: pci@0000:00:08.0
       version: b1
       width: 32 bits
       clock: 66MHz
       capabilities: pm bus_master cap_list
       configuration: driver=snd_hda_intel latency=0 maxlatency=5 mingnt=2
       resources: irq:22 memory:fae78000-fae7bfff
  *-multimedia UNCLAIMED
       description: Multimedia video controller
       product: NEC Corporation
       vendor: NEC Corporation
       physical id: 0
       bus info: pci@0000:04:00.0
       version: 0b
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: latency=0
       resources: memory:feafe000-feafffff memory:feafd800-feafdfff

$ cat /proc/asound/card*/codec* | grep Codec
Codec: Realtek ALC888

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: alsa-base 1.0.25+dfsg-0ubuntu1.1
ProcVersionSignature: Ubuntu 3.5.0-40.62~precise1-generic 3.5.7.20
Uname: Linux 3.5.0-40-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.25.
ApportVersion: 2.0.1-0ubuntu17.4
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: NVidia [HDA NVidia], device 0: ALC888 Analog [ALC888 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  johsua     2074 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'NVidia'/'HDA NVidia at 0xfae78000 irq 22'
   Mixer name   : 'Realtek ALC888'
   Components   : 'HDA:10ec0888,103c2a95,00100202'
   Controls      : 27
   Simple ctrls  : 11
Date: Fri Sep 20 07:10:14 2013
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64 
(20130213)
MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:NVidia failed
Symptom_Card: Built-in Audio - HDA NVidia
Symptom_DevicesInUse:
 2074  johsua    F.... pulseaudio
     PID ACCESS COMMAND
Symptom_Jack: Speaker, Internal
Symptom_Type: No sound at all
Title: [NY538AA-ABA 600-1050, Realtek ALC888, Speaker, Internal] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/05/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 5.07
dmi.board.name: E60
dmi.board.vendor: PEGATRON CORPORATION
dmi.board.version: 1.02
dmi.chassis.type: 3
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr5.07:bd08/05/2009:svnHP-Pavilion:pnNY538AA-ABA600-1050:pvr:rvnPEGATRONCORPORATION:rnE60:rvr1.02:cvnHewlett-Packard:ct3:cvr:
dmi.product.name: NY538AA-ABA 600-1050
dmi.sys.vendor: HP-Pavilion
mtime.conffile..etc.modprobe.d.alsa.base.conf: 2013-08-17T07:25:20.872862

** Affects: alsa-driver (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug precise running-unity

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https://bugs.launchpad.net/bugs/1227906

Title:
  [NY538AA-ABA 600-1050, Realtek ALC888, Speaker, Internal] No sound at
  all

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