<html>
    <head>
      <base href="https://bugs.freedesktop.org/" />
    </head>
    <body>
      <p>
        <div>
            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [BSW] Unable to enter S3/S4 with C0 Stepping CPU"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=88622#c2">Comment # 2</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [BSW] Unable to enter S3/S4 with C0 Stepping CPU"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=88622">bug 88622</a>
              from <span class="vcard"><a class="email" href="mailto:jeff.zheng@intel.com" title="Jeff Zheng <jeff.zheng@intel.com>"> <span class="fn">Jeff Zheng</span></a>
</span></b>
        <pre>Created <span class=""><a href="attachment.cgi?id=112641" name="attach_112641" title="dmesg with i915 disabled">attachment 112641</a> <a href="attachment.cgi?id=112641&action=edit" title="dmesg with i915 disabled">[details]</a></span>
dmesg with i915 disabled

If I use kernel parameter modprobe.blacklist=i915 on C0 step DUT, S3 works.
Attached is the dmesg.</pre>
        </div>
      </p>
      <hr>
      <span>You are receiving this mail because:</span>
      
      <ul>
          <li>You are the QA Contact for the bug.</li>
          <li>You are on the CC list for the bug.</li>
          <li>You are the assignee for the bug.</li>
      </ul>
    </body>
</html>