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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - dota2 and steam rendering errors"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=82759">82759</a>
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>idr@freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>dota2 and steam rendering errors
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-3d-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>major
          </td>
        </tr>

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

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

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

        <tr>
          <th>Hardware</th>
          <td>Other
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>git
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Drivers/DRI/i965
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Mesa
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Steam UI and Dota2 loading screen have black tiles in them, attached screenshot
tells more than words.

Tested this on HSW machine, 64bit Ubuntu 14.04 and 32bit Mesa (dota2 is 32bit)

Bisected to following commit:
--- 8< ---
commit 2f28a0dc23165123cf1e8b5942acad37878edd8a
Author: Kristian Høgsberg <<a href="mailto:krh@bitplanet.net">krh@bitplanet.net</a>>
Date:   Mon Jul 7 16:44:58 2014 -0700

    i965: Implement fast color clears using meta operations

    This patch uses the infrastructure put in place by previous patches
    to implement fast color clears and replicated color clears in terms of
    meta operations.

    This works all the way back to gen7 where fast clear was introduced and
    adds support for fast clear on gen8.  It replaces the blorp path
    completely and improves on a few cases.  Layered clears are now done
    using instanced rendering and multiple render-target clears use a
    MRT shader with rep16 writes.

    Signed-off-by: Kristian Høgsberg <<a href="mailto:krh@bitplanet.net">krh@bitplanet.net</a>>
    Acked-by: Kenneth Graunke <<a href="mailto:kenneth@whitecape.org">kenneth@whitecape.org</a>></pre>
        </div>
      </p>
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