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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - Microphone port switch"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=81580#c1">Comment # 1</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - Microphone port switch"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=81580">bug 81580</a>
              from <span class="vcard"><a class="email" href="mailto:superquad.vortex2@gmail.com" title="Raymond <superquad.vortex2@gmail.com>"> <span class="fn">Raymond</span></a>
</span></b>
        <pre>you have to post the output of alsa-info.sh

the auto mic selection is performed by the driver when the headset Mic use the
Jack state of headphone 



<a href="https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/log/sound/pci/hda?qt=grep&q=headset+mic">https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/log/sound/pci/hda?qt=grep&q=headset+mic</a></pre>
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