Laptop speaker vs earphone

[Vince]

Jerry McAllister wrote:
> On Thu, Jan 11, 2007 at 12:29:45AM -0500, Lion G. wrote:
> 
>> Hi all, I have a weird question.
>>
>> In my previous many laptops, whenever I plug in
>> the earphone, the laptop speaker would stop
>> (and I would only hear music through the earphone)
>>
>> With my newest laptop (Acer Aspire 5050),
>> the laptop speaker stays on no-matter-what.
>> I would hear the same music in both
>> the speaker and the earphone.
>>
>> I'm using Ariff Abdullah's snd_hda driver on 6.2-RC2.
>> The driver reports:
>> pcm0: <ATI SB450 High Definition Audio Controller> mem 
>> 0xc0000000-0xc0003fff irq 16 at device 20.2 on pci0
>> pcm0: <HDA Codec: Realtek ALC883>
>> pcm0: <HDA Driver Revision: 20061210_0037>
>>
>> Another piece of info:
>> The microphone hole has both the microphone symbol
>> and the SPDIF symbol on it. Apparently the laptop
>> uses the same hole for both plugging in a stereo microphone
>> and plugging in a SPDIF device.
>>
>> Also, none of the items in the mixer helps:
>> they raise or drop both the speaker+earphone volume simultaneously.
> 
> This is not a software issue.
> Some jacks are built with a make-and-break setup.  With that, when
> the plug goes in, it presses back a contact that functions as a
> switch for some other circuit - in this case, one that drives
> the onboard speaker - thus disconnecting it whil the plug is in.
> Apparently your new piece of hardware does not have that feature.
> Probably they were cheaping out by a few cents.
> The only fix is to replace the jack.   Unfortunately it is probably
> built in, in such a way as to be very difficult to replace.

Actually i had this same problem with the first version of Ariff's
driver which went away when I used a later version. I would have thought
it a hardware issue as Jerry suggests if I didnt have my system as a
dual boot (it worked fine in windows.)
are you using the latest version from
http://people.freebsd.org/~ariff/

if not then its worth a try. it could be worth asking on
freebsd-multimedia at freebsd.org (the link listed suggests the the
information you should supply.


Vince


> 
> ////jerry
> 
>> I'm out of ideas. Has any one seen something like this?
>>
>> Thanks all!
>>
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