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            <b><a class="bz_bug_link 
          bz_status_ASSIGNED "
   title="ASSIGNED - [BSW] System fail to enter S3 with system hang up after load i915 driver"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=84903#c11">Comment # 11</a>
              on <a class="bz_bug_link 
          bz_status_ASSIGNED "
   title="ASSIGNED - [BSW] System fail to enter S3 with system hang up after load i915 driver"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=84903">bug 84903</a>
              from <span class="vcard"><a class="email" href="mailto:ville.syrjala@linux.intel.com" title="Ville Syrjala <ville.syrjala@linux.intel.com>"> <span class="fn">Ville Syrjala</span></a>
</span></b>
        <pre>(In reply to wendy.wang from <a href="show_bug.cgi?id=84903#c10">comment #10</a>)
<span class="quote">> Created <span class=""><a href="attachment.cgi?id=110297" name="attach_110297" title="V47_s3_dmesg.log">attachment 110297</a> <a href="attachment.cgi?id=110297&action=edit" title="V47_s3_dmesg.log">[details]</a></span>
> V47_s3_dmesg.log

> Sorry, attached v47-s3-dmesg log file.</span >

There's no failure in the log. Just a warning about new_config being out of
whack
"[  737.980749] WARN_ON(intel_crtc->new_config && intel_crtc->new_config !=
&intel_crtc->config)"

It's harmless, but if you want to get rid of it you can cherry-pick
 commit 2d3d111a8f34606469e589d3491c9a64f62310b8
 Author: Ville Syrjälä <<a href="mailto:ville.syrjala@linux.intel.com">ville.syrjala@linux.intel.com</a>>
 Date:   Fri Nov 21 21:00:36 2014 +0200

    drm/i915: Don't clobber crtc->new_config when nothing changes

Is there an actual failure that affects the user?</pre>
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