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    <body><span class="vcard"><a class="email" href="mailto:imirkin@alum.mit.edu" title="Ilia Mirkin <imirkin@alum.mit.edu>"> <span class="fn">Ilia Mirkin</span></a>
</span> changed
              <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED FIXED - [NVE7] Lenovo Y500 with 2x GT650M, first card gets wrong vbios, fails boot on 3.13+"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=75511">bug 75511</a>
        <br>
             <table border="1" cellspacing="0" cellpadding="8">
          <tr>
            <th>What</th>
            <th>Removed</th>
            <th>Added</th>
          </tr>

         <tr>
           <td style="text-align:right;">Status</td>
           <td>NEW
           </td>
           <td>RESOLVED
           </td>
         </tr>

         <tr>
           <td style="text-align:right;">Resolution</td>
           <td>---
           </td>
           <td>FIXED
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        <div>
            <b><a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED FIXED - [NVE7] Lenovo Y500 with 2x GT650M, first card gets wrong vbios, fails boot on 3.13+"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=75511#c11">Comment # 11</a>
              on <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED FIXED - [NVE7] Lenovo Y500 with 2x GT650M, first card gets wrong vbios, fails boot on 3.13+"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=75511">bug 75511</a>
              from <span class="vcard"><a class="email" href="mailto:imirkin@alum.mit.edu" title="Ilia Mirkin <imirkin@alum.mit.edu>"> <span class="fn">Ilia Mirkin</span></a>
</span></b>
        <pre>(In reply to <a href="show_bug.cgi?id=75511#c10">comment #10</a>)
<span class="quote">> Would you mind trying to edit nouveau_acpi.c:nouveau_acpi_rom_supported and
> removing the check for dsm_detected and optimus_detected? (And then booting
> that without the NvBios setting.) I think the situation is that those aren't
> set, but we should still get the rom from ACPI for that first card.</span >

A patch to do this was merged a while back, and backported to stable kernels.
Pretty sure it will fix the issue for you (without needing the NvBios thing).
Feel free to re-open if not.</pre>
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