Sound: Headphones - yes, speakers - no

[davinderkumar kumar]

On 13 June 2010 10:34, Cameron Hutchison <lists at xdna.net> wrote:
> I have just installed Ubuntu 10.04 on a Compaq Presario CQ42-210AU
> laptop. I cannot get the speakers in the laptop working. It does work if
> I plug in the headphones. It is not a volume or mute issue. Pulseaudio
> is set up to use the device (and clearly does when the headphones are
> plugged in).
>
> I have tried installing PPAs from ricotz to upgrade alsa to 1.0.23, as
> some people had the same problem and it was solved with a later release
> of alsa.
>
> The audio device is:
> 00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA) (rev 40)
>Hi,

# Please try this procedure:

# Step 1: Open Terminal from "Applications->Accessories->
Terminal"

#Step 2: Run the following command (copy/paste each command into the
Terminal and then hit <enter>)

sudo gedit /etc/modprobe.d/alsa-base

# Add the following 5 lines to the end of the alsa-base file:

options snd-pcsp index=-2
alias snd-card-0 snd-hda-intel
alias sound-slot-0 snd-hda-intel
options snd-hda-intel model=m51va
options snd-hda-intel enable_msi=1

# Run the following command (copy/paste each command into the Terminal
and then hit <enter>)

sudo gedit /etc/modprobe.d/options

# Add the following 5 lines to the end of the options file:

options snd-pcsp index=-2
alias snd-card-0 snd-hda-intel
alias sound-slot-0 snd-hda-intel
options snd-hda-intel model=m51va
options snd-hda-intel enable_msi=1

# Step 3: Reboot pc and retest sound.

# Step 4: If audio output still does not work, please try one of the
following model options (instead of m51va):

 ALC662/663
   3stack-dig 3-stack (2-channel) with SPDIF
   3stack-6ch 3-stack (6-channel)
   3stack-6ch-dig 3-stack (6-channel) with SPDIF
   6stack-dig 6-stack with SPDIF
   lenovo-101e Lenovo laptop
   eeepc-p701 ASUS Eeepc P701
   eeepc-ep20 ASUS Eeepc EP20
   m51va ASUS M51VA
   g71v ASUS G71V
   h13 ASUS H13
   g50v ASUS G50V
   auto auto-config reading BIOS (default)
regards
davinder
> The module loaded for this card is:
>  snd_hda_codec_realtek
>
> I have read of similar sorts of issues in the past which were solved by
> passing some module parameters to the appropriate alsa modules, but I
> dont know what those parameters might be.
>
> Can any one suggest something to try? (I wont be removing pulseaudio)
>
>
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