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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [N56VZ, Realtek ALC663, Black Headphone Out, Right] No sound from Subwoofer in 2.1 mode"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=91568#c17">Comment # 17</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [N56VZ, Realtek ALC663, Black Headphone Out, Right] No sound from Subwoofer in 2.1 mode"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=91568">bug 91568</a>
              from <span class="vcard"><a class="email" href="mailto:felipematas@yahoo.com" title="Lagu <felipematas@yahoo.com>"> <span class="fn">Lagu</span></a>
</span></b>
        <pre>Note: searching in the web i found a little thing, the alc663 driver is a 5.1
not 2.1, this probably can be extended to the profiles of pulseaudio.

Source:

<a href="http://www.realtek.com/products/productsView.aspx?Langid=1&PFid=37&Level=5&Conn=4&ProdID=165">http://www.realtek.com/products/productsView.aspx?Langid=1&PFid=37&Level=5&Conn=4&ProdID=165</a>

In the kernel bugzilla:

<a href="https://bugzilla.kernel.org/show_bug.cgi?id=70821">https://bugzilla.kernel.org/show_bug.cgi?id=70821</a></pre>
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