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On Tue, 2008-01-29 at 21:11 -0500, Richard Marzan wrote: |
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> On Tuesday 29 January 2008, Marzan, Richard non Unisys wrote: |
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> > I tried googling around but no helpful content so far. I have a |
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> > laptop with built-in sound. It uses the HDA_intel kernel module. My |
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> > problem is that I can't silence the onboard/built-in speakers when I |
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> > plug in the headphones to the machine. Muting sound would lead to all |
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> > jacks and audio ports to be silenced -- not just the built-in |
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> > speakers, which I intend to mute solely leaving sound alive on the |
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> > headphone jacks. There are no channels readily observable to |
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> > differentiate where sound goes and to which port with alsa-mixer. The |
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> > behavior I would like to achieve is one that will allow me to mute |
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> > onboard speakers while continuing to have the headphones receive |
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> > audio signals. Has anyone ever done this? Any pointers to |
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> > documentation will be appreciated. |
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> |
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> Is it a Dell with an ICH8 chipset? This is a well known bug and is fixed |
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> in alsa-1.0.15. I have this same problem on my Dell D830 which runs |
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> Gentoo and Ubuntu. |
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> |
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> On Ubuntu I use a backported kernel and |
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> 'options snd-hda-intel model=dell-m42' in /etc/modprobe.d/alsa-base |
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There was someone who asked for me to keep him or her updated with this |
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effort and this is why I'm posting back to the post with this info. |
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Well, a few months later and sound jack sound isolation issue is |
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corrected. Upgrade to ALSA-DRIVER 1.0.16 and you should be fine. You |
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might have to unmask it. Sound now ceases to emanate from my speakers |
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when headphones are plugged into my laptop (HP dv6645us). All thanks to |
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Tobin Davis and the alsa-project and a surprise from emerge --sync && |
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emerge -uDNtv world |
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Here is my output from the alsa-info shell script, I hope this helps |
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someone out: |
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http://pastebin.ca/988978 |
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-- |
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