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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - witcher 2 glitches a lot"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=91310">91310</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>witcher 2 glitches a lot
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Mesa
          </td>
        </tr>

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

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

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

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

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

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

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

        <tr>
          <th>Assignee</th>
          <td>nouveau@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>freedesktop@karolherbst.de
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>nouveau@lists.freedesktop.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=117061" name="attach_117061" title="screenshot showing the glitches">attachment 117061</a> <a href="attachment.cgi?id=117061&action=edit" title="screenshot showing the glitches">[details]</a></span>
screenshot showing the glitches

In the Load game menu and inside the game witcher 2 glitchers a lot.

sadly I can't create an apitrace, because the game crashes with
MESA_EXTENSION_OVERRIDE=-GL_ARB_buffer_storage and setting vb_dirty = 1 and
cb_dirty = 1 doesn't help (in nvc0_vbo.c:nvc0_draw_vbo)

It works with intel.

All settings set to minimum.</pre>
        </div>
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