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<p class="MsoNormal"><span lang="EN-US">BugLink: <a href="https://bugs.launchpad.net/dell/+bug/1154441">
https://bugs.launchpad.net/dell/+bug/1154441</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">commit f82d7d16aee5eb4c2315ba11a90f2f3c662d45b8<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Author: Mengdong Lin <mengdong.lin@intel.com><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Date: Sat Sep 21 20:34:45 2013 -0400<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> ALSA : hda - not use assigned converters for all unused pins<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> BIOS can mark a pin as "no physical connection" if the port is used by an<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> integrated display which is not audio capable. And audio driver will overlook<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> such pins.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> On Haswell, such a disconneted pin will keep muted and connected to the 1st<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> converter by default. But if the 1st convertor is assigned to a connected pin<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> for audio streaming. The muted disconnected pin can make the connected pin<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> no sound output.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> So this patch avoids using assigned converters for all unused pins for Haswell,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> including the disconected pins.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Signed-off-by: Mengdong Lin <mengdong.lin@intel.com><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Reviewed-by: David Henningsson <david.henningsson@canonical.com><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Signed-off-by: Takashi Iwai <a href="mailto:tiwai@suse.de">
tiwai@suse.de</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">thanks<o:p></o:p></span></p>
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