No Sound on HP Pavilion

Thanks for taking the time to report this bug. Please include the information requested from [WWW] https://help.ubuntu.com/community/DebuggingSoundProblems as separate attachments. This will give us the information we need to investigate further.

Problem is solved by editing "/etc/modprobe.d/alsa-base" and adding the following line:
options snd-hda-intel model=auto

Apologies for not replying sooner - somehow I didn't notice you'd provided the information required. Assigning to the audio team.

alsa-driver (1.0.14-1ubuntu1) gutsy; urgency=low

  * Merge from Debian unstable, remaining changes:
    - debian/alsa-base.modprobe: Load snd-seq,
    - debian/alsa-base.postinst: Forcibly remove /etc/modprobe.d/sound
      on dist-upgrade,
    - debian/control: Don't Depend on modutils, and adhere to
      DebianMaintainerField,
    - debian/linux-sound-base.dirs: Don't create modutils or discover,
    - debian/rules: Enable MPU for snd-cmipci,
    - Only ship modprobe configuration,
    - Remove default mode,
    - Invoke modprobe with -Qb and command line options,
    - Remove modprobe post-install script in favour of using udev,
    - Continue to ship the initscript in the apm scripts dir.
  * New upstream version closes LP: #45841, LP: #51357, LP: #57294,
    LP: #59569, LP: #63971, LP: #66843, LP: #68930, LP: #75725,
    LP: #77024, LP: #77099, LP: #77101, LP: #83015, LP: #87195,
    LP: #88546, LP: #88570, LP: #90417, LP: #91721, LP: #92307,
    LP: #92358, LP: #95597, LP: #108563, LP: #110599, LP: #115186,
    LP: #118173, LP: #119086.

alsa-driver (1.0.14-1) unstable; urgency=low

  * New upstream release. (closes: #391991, #401074, #421853)

  [ Jordi Mallach ]
  * debian/control: add XS-Vcs-Browser and XS-Vcs-Svn headers.

  [ Elimar Riesebieter ]

  * Patch management switched to quilt. This is more comfortable.
  * Updated alsa-drivers debconf templates.
    Thanks, debian-l10n-english contributors (closes: #425208).
  * Updated alsa-drivers debconf translations:
    Galician: Jacobo Tarrio (closes: #425804).
    Japanese: Kenshi Muto (closes: #426007).
    Portuguese: Traduz (closes: #426111).
    Malayalam: Praveen A (closes: #426241).
    German: Helge Kreutzmann (closes: #426375).
    Czech: Miroslav Kure (closes: #426427).
    Vietnamese: Clytie Siddall (closes: #427148).
    Dutch: Bart Cornelis (closes: #428032).
    Russian: Yuri Kozlov (closes: #428136).
    Spanish: Carlos Galisteo de Cabo (closes: #428572)
    Swedish: Daniel Nylander (closes: #426202)
    Catalan: Jordi Mallach (closes: #428224)
  * Added alsa-drivers debconf templates translations:
    Basque: Piarres Beobide (closes: #425810).
    Bulgarian: Damyan Ivanov (closes: #425854).
    Tamil: Tirumurti Vasudevan (closes: #426081).
    Italian: Luca Monducci (closes: #426152).
    Korean: Sunjae Park (closes: #426618).
    Arabic: Ossama Khayat (closes: #428264)

alsa-driver (1.0.14~rc4-1) experimental; urgency=low

  [ Elimar Riesebieter ]
  * New upstream release candidate.
  * Added Malayalam translation. Thanks Santhosh Thottingal. (closes: #419524)

alsa-driver (1.0.14~rc3-1) experimental; urgency=low

  [ Elimar Riesebieter ]
  * New upstream release candidate
  * Merged etch changes

alsa-driver (1.0.14~rc1-1) experimental; urgency=low

  [ Elimar Riesebieter ]
  * New upstream release candidate
  * Removed debian/patches/98_ens1371_inaudible_sound_def.dpatch. Applied
    different from upstream

alsa-driver (1.0.13-5) unstable; urgency=medium

  [ Elimar Riesebieter ]
  * Added snd-seq-midi as an optional load above generic modules (snd-rawmidi)
    Thanks Eduard Dumitrescu for testing. (closes: #408036)
  * Added "cx88_alsa (PCI: TV cards...." to d...