Re: Diagnosing lack of sound problem on HP laptop
27/04/2011 02:35, Tim Long wrote:
> Hi all,
>
> I have installed squeeze (amd64) on a HP Compaq 6730s laptop and
> currently the sound is not working. It works fine in when running
> Vista of the other partition.
>
> The sound chip is Intel:
> $ lspci | grep Audio
> 00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio
> Controller (rev 03)
>
> $ cat /proc/asound/card0/codec#0 | grep Codec
> Codec: Analog Devices AD1984A
>
> Looking around on the web I found instructions to try model options
> from doc file HD-Audio-Models.txt.gz. I have tried adding all the
> combinations of options snd-hda-intel model=laptop, model=mobile .....
> to the file /etc/modprobe.d/alsa-base.conf but nothing has changed.
>
> The LinLatop website entry for the model also suggested the module
> option of: 'options snd-hda-intel model=laptop enable=1 index=0' but
> still no luck.
>
> Any ideas where to go from here?
>
> Regards,
>
> Tim.
>
>
Hi, I have the same laptop (cpu Intel c2duo T5870, ATI mobility Radeon
HD 3430, same audio chip). It's currently running Kubuntu 10.10 but was
running Debian Squeeze for a while. What surprises me is that with
Squeeze kernel you should not need the line
options snd-hda-intel model=laptop enable=1 index=0
in alsa-base.conf, it was only necessary for me prior to kernel 2.6.30.
The fn+mute key has a very strange behavior sometimes, the proper state
(muted or not) is not shown in the various sound applets I used (in
gnome and kde), but the mute key works nonetheless and when it is used
to mute the sound you may need to use it again to de-mute, it won't work
using only the sound applet from your desktop environment. Maybe you can
try playing with this key and double check in between with alsamixer
that no channel is muted.
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