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  #1  
Old 10th February 2008, 05:34 AM
deepblueretro Offline
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Join Date: Dec 2007
Posts: 6
Exclamation PC Speaker does not mute when headphone or ext speaker is plugged-in

Hi,

I am new to linux. I am having a strange problem. When`I plugin headphone or external speakers, laptop's speaker is not becoming mute. I have no idea what to do. I am using FC8.
Thanks in advance for any help.
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  #2  
Old 18th March 2008, 05:51 PM
kirk1 Offline
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Join Date: Jan 2008
Posts: 10
I am having exactly the same problem and am looking for the solution. did you solve this problem?
SOLVED:
in Sound Mixer applet
lower MasterMono volume to zero for muting
raise Master volume for headphone volume controls

Last edited by kirk1; 18th March 2008 at 06:08 PM.
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  #3  
Old 18th March 2008, 06:01 PM
CamoAnimal Offline
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Join Date: Mar 2008
Location: USA
Posts: 67
Hi, I am fairly new to the forums, but I can tell you an easy fix to this problem...

Go to:

K menu>System>Software Updater> Then type in your ROOT password

It will check for updates for a sec. then you should see some updates. Hopefully one of them is for you audio device.

Please tell me if this worked...
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  #4  
Old 18th March 2008, 07:57 PM
marko Offline
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Join Date: Jun 2004
Location: Laurel, MD USA
Posts: 6,097
Isn't that a function of the laptop hardware? ie the physical insertion
of the headphone jack pushes on a switch inside the port to
tell the laptop to mute the speakers. I don't see how alsa could
diagnose that a headphone was plugged in without a switch in
the port or some kind of continuity detection in the hardware
(without the headphones the resistance is ~ infinite but with
the headphones it's 50ohms or whatever so that's another
way the laptop could tell but it's still a physical thing in the
laptop)

Mark

Last edited by marko; 18th March 2008 at 07:59 PM.
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  #5  
Old 18th March 2008, 08:57 PM
CamoAnimal Offline
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Join Date: Mar 2008
Location: USA
Posts: 67
It depends... On older model laptops that is true, but on my newer HP it uses software to tell that the headphones are plugged in.
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