Comment 22 for bug 130559

On my machine which is an ACER 5920G laptop everything works fine - I've got the appropriate module installed in the system (snd -hda -intel)
However, there's a trap in this - Sound works perfectly but only with external speakers or headphones plugged in, otherwise the system seems to be rather muted, but no channel is.

My Specs -

Distributor ID: Ubuntu
Description: Ubuntu 7.04
Release: 7.04
Codename: feisty

Linux oko-laptop 2.6.20-16-386 #2 Fri Aug 31 00:51:58 UTC 2007 i686 GNU/Linux

oko@oko-laptop:~$ modinfo snd-hda-intel
filename: /lib/modules/2.6.20-16-386/kernel/sound/pci/hda/snd-hda-intel.ko
description: Intel HDA driver
license: GPL
srcversion: A3552B2DF3A932D88FFC00C
alias: pci:v000010DEd0000055Dsv*sd*bc*sc*i*
alias: pci:v000010DEd0000055Csv*sd*bc*sc*i*
alias: pci:v000010DEd0000044Bsv*sd*bc*sc*i*
alias: pci:v000010DEd0000044Asv*sd*bc*sc*i*
alias: pci:v000010DEd000003F0sv*sd*bc*sc*i*
alias: pci:v000010DEd000003E4sv*sd*bc*sc*i*
alias: pci:v000010DEd00000371sv*sd*bc*sc*i*
alias: pci:v000010DEd0000026Csv*sd*bc*sc*i*
alias: pci:v000010B9d00005461sv*sd*bc*sc*i*
alias: pci:v00001039d00007502sv*sd*bc*sc*i*
alias: pci:v00001106d00003288sv*sd*bc*sc*i*
alias: pci:v00001002d00007919sv*sd*bc*sc*i*
alias: pci:v00001002d0000793Bsv*sd*bc*sc*i*
alias: pci:v00001002d00004383sv*sd*bc*sc*i*
alias: pci:v00001002d0000437Bsv*sd*bc*sc*i*
alias: pci:v00008086d0000293Fsv*sd*bc*sc*i*
alias: pci:v00008086d0000293Esv*sd*bc*sc*i*
alias: pci:v00008086d0000284Bsv*sd*bc*sc*i*
alias: pci:v00008086d0000269Asv*sd*bc*sc*i*
alias: pci:v00008086d000027D8sv*sd*bc*sc*i*
alias: pci:v00008086d00002668sv*sd*bc*sc*i*
depends: snd-pcm,snd-page-alloc,snd-hda-codec,snd
vermagic: 2.6.20-16-386 mod_unload 486
parm: index:Index value for Intel HD audio interface. (int)
parm: id:ID string for Intel HD audio interface. (charp)
parm: model:Use the given board model. (charp)
parm: position_fix:Fix DMA pointer (0 = auto, 1 = none, 2 = POSBUF, 3 = FIFO size). (int)
parm: probe_mask:Bitmask to probe codecs (default = -1). (int)
parm: single_cmd:Use single command to communicate with codecs (for debugging only). (bool)
parm: enable_msi:Enable Message Signaled Interrupt (MSI) (int)
parm: enable:bool

oko@oko-laptop:~$ sudo lshw |grep -i Audio
Password:
             description: Audio device
             product: 82801H (ICH8 Family) HD Audio Controller

oko@oko-laptop:~$ aplay --list-devices
**** Lista PLAYBACK urządzeń ****
karta 0: Intel [HDA Intel], urządzenie 0: ALC883 Analog [ALC883 Analog]
  Urządzenia podrzędne: 0/1
  Urządzenie podrzędne #0: subdevice #0