no noise on hp dx5151

[LECUYER]

no possible to install sound driver linux 1.0.25

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: i-nex 0.5.2-0~bzr235~20130104~precise1 [origin: LP-PPA-i-nex-development-team-stable]
ProcVersionSignature: Ubuntu 3.2.0-37.58-generic 3.2.35
Uname: Linux 3.2.0-37-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: amd64
CrashDB: inex
Date: Thu Feb 7 14:11:28 2013
FreeM:
 total used free shared buffers cached
 Mem: 1993 1680 312 0 16 253
 -/+ buffers/cache: 1411 581
 Swap: 2037 33 2004
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
LsSysBlock:
 sda
 sdb
 sdc
MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=fr:en
 PATH=(custom, no user)
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
SourcePackage: i-nex
SwaponS:
 Filename Type Size Used Priority
 /dev/sda5 partition 2086908 34252 -1
TimeZone: Europe/Paris
UnameA: Linux costa-System-Product-Name 3.2.0-37-generic #58-Ubuntu SMP Thu Jan 24 15:28:10 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
UpgradeStatus: No upgrade log present (probably fresh install)