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<p class="MsoNormal"><span lang="EN-US">One customer report a installation failure on Haswell based platform which DVD can’t be recognized. this patch used to solve it.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The patch is included in upstream 3.9-rc6. Please consider to backport it to Ubuntu 12.04.2, 12.10 and 13.04<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 b55f84e2d527182e7c611d466cd0bb6ddce201de<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Author: Youquan Song <youquan.song@intel.com><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Date: Wed Mar 6 10:49:05 2013 -0500<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"> ata_piix: Fix DVD not dectected at some Haswell platforms<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"> There is a quirk patch 5e5a4f5d5a08c9c504fe956391ac3dae2c66556d<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> "ata_piix: make DVD Drive recognisable on systems with Intel Sandybridge<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> chipsets(v2)" fixing the 4 ports IDE controller 32bit PIO mode.<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"> We've hit a problem with DVD not recognized on Haswell Desktop platform which<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> includes Lynx Point 2-port SATA controller.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-indent:21.0pt"><span lang="EN-US">This quirk patch disables 32bit PIO on this controller in IDE mode.<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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