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yayu
Asked: 2011-08-10 11:16:01 +0800 CST

Headphone Jack has no sense [duplicate]

  • 772

Possible Duplicate:
Sound comes out of my speakers even when headphones are plugged in

How can I mute the speakers when the headphones are plugged in?

I have searched all over the internet and although there are many threads that discuss this, none has worked for me.

I have tried alsamixer and installing linux-backports-modules-alsa-lucid-generic, but neither worked. The Speakers just wont mute when I plug in the headphones. I had this problem in 11.04 and hoped it would be one of the headaches to go away when I downgraded to Lucid Lynx.

cat /proc/asound/card0/codec#* | grep Codec
Codec: Realtek ALC665
Codec: Intel CougarPoint HDMI

Model Name: Alienware M14xR1 (PS: I am not a gamer so I have no attachment to Windows :) )

$ lspci | grep -i audio
00:1b.0 Audio device: Intel Corporation Cougar Point High Definition Audio Controller (rev 05)
    $ sudo lshw -c sound
       *-multimedia            
           description: Audio device
           product: Cougar Point High Definition Audio Controller
           vendor: Intel Corporation
           physical id: 1b
           bus info: pci@0000:00:1b.0
           version: 05
           width: 64 bits
           clock: 33MHz
           capabilities: pm msi pciexpress bus_master cap_list
           configuration: driver=HDA Intel latency=0
           resources: irq:50 memory:da800000-da803fff
sound

2 Answers

  1. Did you see the answers to this question? There are a million ways of wiring these audio chips, so can you please add the model name of your laptop? Also have a look at this bug. You need to find the right model, maybe this list helps.

    Lucid is a year older than your Sandy Bridge laptop, so I guess it would be better if you install 11.04 or wait two months and install 11.10.

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  2. I don't know how you could automatically do this but while you are waiting for a permanent solution assigning amixer sset Speaker toggle to a keyboard shortcut should help you.

    • To do this open system -> preferences -> keyboard shortcuts
    • Click on add
    • Give it a name and paste the above command
    • Assign a shortcut to the command.

    You could also turn your speakers off from the sound menu

    • In the sound menu go to output
    • In the drop down menu (connectors) select speakers
    • Click on the mute checkbox
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