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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


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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Old 18th March 2008, 04:51 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?
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 05:08 PM.
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Old 18th March 2008, 05:01 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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Old 18th March 2008, 06:57 PM
marko Offline
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Join Date: Jun 2004
Location: Laurel, MD USA
Posts: 7,097
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


Last edited by marko; 18th March 2008 at 06:59 PM.
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Old 18th March 2008, 07:57 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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