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        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - Haswell: lock screen disappears temporarily after dmps force off/on (laptop lid close/open)"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=73842">73842</a>
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Haswell: lock screen disappears temporarily after dmps force off/on (laptop lid close/open)
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux (All)
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>uriahheep@gmail.com
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86-64 (AMD64)
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>DRM/Intel
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>DRI
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=92478" name="attach_92478" title="Xorg.0.log">attachment 92478</a> <a href="attachment.cgi?id=92478&action=edit" title="Xorg.0.log">[details]</a></span>
Xorg.0.log

On a MacBook Pro 11,1 (late 2013 13", Intel Haswell / Iris 5100), when acpid
detects lid close/open it'll call xset -display :0 dpms force off or on
(because for some reason the screen doesn't turn off by itself when the lid
closes). Meanwhile, before I close the lid, I manually run i3lock, but when I
open the lid up again the desktop is visible for a fraction of a second, and
then i3lock's blank screen reappears. This does not happen on another of my
machines with a Pineview Intel chip (GMA 3150 I believe). I understand that
this may not be a graphics driver bug at all, however since it only happens on
this Haswell chip it very well might be.</pre>
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