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On Tuesday 29 January 2008 12:58:19 pm Marzan, Richard non Unisys wrote: |
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> I tried googling around but no helpful content so far. I have a laptop |
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> with built-in sound. It uses the HDA_intel kernel module. My problem is |
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> that I can't silence the onboard/built-in speakers when I plug in the |
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> headphones to the machine. Muting sound would lead to all jacks and |
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> audio ports to be silenced -- not just the built-in speakers, which I |
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> intend to mute solely leaving sound alive on the headphone jacks. There |
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> are no channels readily observable to differentiate where sound goes and |
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> to which port with alsa-mixer. The behavior I would like to achieve is |
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> one that will allow me to mute onboard speakers while continuing to have |
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> the headphones receive audio signals. Has anyone ever done this? Any |
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> pointers to documentation will be appreciated. |
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I had an issue very similiar to this when I purchased my Acer Extensa 5620. |
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After looking around for a long time I found out that the version of alsa |
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that was being used in my kernel at the time didn't well support my sound |
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card. I'm not sure about what alsa version is being used in the latest kernel |
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now but it doesn't hurt to give it a go. Also, I had to modprobe |
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snd_hda_intel with model=acer. Before inserting the module with the model |
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param I was at the same exact spot you are at now. hope this helps |
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-- |
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Dan Dexter |