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    <head>
      <base href="https://bugs.freedesktop.org/" />
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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 --- - xscreensaver won't go away with latest intel driver (regression)"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=64675">64675</a>
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>chris@chris-wilson.co.uk
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>xscreensaver won't go away with latest intel driver (regression)
          </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>All
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>nbowler@draconx.ca
          </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>Driver/intel
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>xorg
          </td>
        </tr></table>
      <p>
        <div>
        <pre>After updating xf86-video-intel to latest git, xscreensaver appears to be
broken.  The screensaver itself works, but the unlock dialog does not render at
all (although the mouse pointer appears).  After entering my password, the
(frozen) screensaver image remains on the screen where the unlock dialog should
have been (obscuring everything on that display).  Switching VTs corrects the
issue.  All of this is 100% reproducible.

The screen which did not try to display the xscreensaver password dialog works
properly.

This issue occurs w/ SNA on a 2-screen Zaphod configuration with a G45 chip,
running Xorg server 1.14.1.  It does not appear to happen on non-zaphod dual
head configurations.

Bisection pinpoints the following commit:

16a64649e9c440ab9457467fe04be25719a73e7c is the first bad commit
commit 16a64649e9c440ab9457467fe04be25719a73e7c
Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Date:   Fri May 10 15:48:58 2013 +0100

    sna: Basic copy-on-write support for cloning pixmaps

    Signed-off-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>

:040000 040000 2891de17b5a1271fffbf71048055604b1aa0e678
9bbb332cf563e351cbf7924933bd701fcdbb1b2b M    src</pre>
        </div>
      </p>
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