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    <body><span class="vcard"><a class="email" href="mailto:huax.lu@intel.com" title="lu hua <huax.lu@intel.com>"> <span class="fn">lu hua</span></a>
</span> changed
              <a class="bz_bug_link 
          bz_status_ASSIGNED "
   title="ASSIGNED - [HSW ULT/BYT]igt/kms_cursor_crc fails with eDP"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=72864">bug 72864</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>NEEDINFO
           </td>
           <td>ASSIGNED
           </td>
         </tr>

         <tr>
           <td style="text-align:right;">Summary</td>
           <td>[HSW ULT/BDW]igt/kms_cursor_crc fails with eDP
           </td>
           <td>[HSW ULT/BYT]igt/kms_cursor_crc fails with eDP
           </td>
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            <b><a class="bz_bug_link 
          bz_status_ASSIGNED "
   title="ASSIGNED - [HSW ULT/BYT]igt/kms_cursor_crc fails with eDP"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=72864#c21">Comment # 21</a>
              on <a class="bz_bug_link 
          bz_status_ASSIGNED "
   title="ASSIGNED - [HSW ULT/BYT]igt/kms_cursor_crc fails with eDP"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=72864">bug 72864</a>
              from <span class="vcard"><a class="email" href="mailto:huax.lu@intel.com" title="lu hua <huax.lu@intel.com>"> <span class="fn">lu hua</span></a>
</span></b>
        <pre>(In reply to Paulo Zanoni from <a href="show_bug.cgi?id=72864#c20">comment #20</a>)
<span class="quote">> Please test this patch: <a href="http://patchwork.freedesktop.org/patch/35237/">http://patchwork.freedesktop.org/patch/35237/</a>

> It solves the problem for me, on BDW.</span >

Test on latest -nightly kernel, It works well on BDW. It still fails on BYT.

Apply this patch and test on BYT, it still fails.
output:
IGT-Version: 1.8-gbba1cd0 (x86_64) (Linux: 3.17.0_kcloud_1fae80_20141020+
x86_64)
Beginning cursor-128x128-offscreen on pipe A, connector eDP-1
.Test assertion failure function do_single_test, file kms_cursor_crc.c:131:
Failed assertion: igt_crc_equal(&crc, &ref_crc)
Subtest cursor-128x128-offscreen: FAIL (3.246s)</pre>
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