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    <body><span class="vcard"><a class="email" href="mailto:yangweix.shui@intel.com" title="shui yangwei <yangweix.shui@intel.com>"> <span class="fn">shui yangwei</span></a>
</span> changed
              <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [SNB IVB HSW]S4 fails to resume sporadically"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=67337">bug 67337</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>NEW
           </td>
         </tr>

         <tr>
           <td style="text-align:right;">Assignee</td>
           <td>intel-gfx-bugs@lists.freedesktop.org
           </td>
           <td>yangweix.shui@intel.com
           </td>
         </tr></table>
      <p>
        <div>
            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [SNB IVB HSW]S4 fails to resume sporadically"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=67337#c2">Comment # 2</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [SNB IVB HSW]S4 fails to resume sporadically"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=67337">bug 67337</a>
              from <span class="vcard"><a class="email" href="mailto:yangweix.shui@intel.com" title="shui yangwei <yangweix.shui@intel.com>"> <span class="fn">shui yangwei</span></a>
</span></b>
        <pre>Created <span class=""><a href="attachment.cgi?id=83876" name="attach_83876" title="without i915: screen output">attachment 83876</a> <a href="attachment.cgi?id=83876&action=edit" title="without i915: screen output">[details]</a></span>
without i915: screen output

(In reply to <a href="show_bug.cgi?id=67337#c1">comment #1</a>)
<span class="quote">> Please try this without i915 loaded so we can see if this is related to our
> driver in the first place.

> If that works, please try with i915 again, using drm.debug=0xe module
> parameter.</span >

(In reply to <a href="show_bug.cgi?id=67337#c1">comment #1</a>)
<span class="quote">> Please try this without i915 loaded so we can see if this is related to our
> driver in the first place.

> If that works, please try with i915 again, using drm.debug=0xe module
> parameter.</span >

S4 also failed to resume after removing i915, I noticed that the screen is not
black, and the machine is reachable. I said it failed, because my script
stopped, and the screen output is strange. I loop running S4 test for two
times, the first time it failed at 9th round, the second time it failed at 6th
round. 

There's quite a little things in dmesg, I pasted it here:
---------------------------------
[83963.438834] cl-api-create-p[6317]: segfault at 0 ip 0000003cd355f791 sp
00007ffff7d5ccf8 error 4 in libc-2.15.so[3cd3400000+1ac000]
[2642043.120562] e1000e: eth1 NIC Link is Down
[2642044.724906] e1000e: eth1 NIC Link is Up 100 Mbps Full Duplex, Flow
Control: Rx/Tx
[2642044.724909] e1000e 0000:02:00.0: eth1: 10/100 speed: disabling TSO
[5931798.505398] libcl.so[32650]: segfault at 18bf4 ip 00000000f7797bfb sp
00000000ffa05414 error 6 in libcl.so[f7787000+18000]</pre>
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