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      <base href="https://bugs.freedesktop.org/" />
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        <tr>
          <th>Priority</th>
          <td>high
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [IVB/HSW bisected]mplayer can't play video smoothly enabling SNA"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=69869">69869</a>
          </td>
        </tr>

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

        <tr>
          <th>Summary</th>
          <td>[IVB/HSW bisected]mplayer can't play video smoothly enabling SNA
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-gfx-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>Linux (All)
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>cancan.feng@intel.com
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>All
          </td>
        </tr>

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

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

        <tr>
          <th>Component</th>
          <td>Driver/intel
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>xorg
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=86705" name="attach_86705" title="Xorg.0.log">attachment 86705</a> <a href="attachment.cgi?id=86705&action=edit" title="Xorg.0.log">[details]</a></span>
Xorg.0.log

Environment:
----------------------------
 Libdrm:       
(master)libdrm-2.4.46-42-gbf4a7cd4b2456d4dc93a86bbcc51eba4ae73390a
 Mesa:        (master)fe2528c0b69d5719b15d926ada9424cac7569b9c
 Xserver:       
(master)xorg-server-1.14.99.1-215-g7d3d4ae55dd6ee338439e2424ac423b1df80501b
 Xf86_video_intel:       
(master)2.99.902-54-gd7eb40efa79dd9ea720606b94a20179c7dd18e03
 Cairo:        (master)337ab1f8d9e29086bfb4001508b28835b41c6390
 Libva:        (staging)f5c913765e6af38d835cacf339054ccc60bddefb
 Libva_intel_driver:        (staging)f6685c309d94fb7679c9772703c8790cb71cdd73
 Kernel:    (drm-intel-nightly) 24c8329416b54b79655afe45370cf3d46f41e283

Bug Details Description:
----------------------------
Mplayer can't play video smoothly after starting X, this issue happens with SNA
enabled, and it will disappear with SNA disabled. This is a xf86_video_intel
regression:

dbe75982457cfe6bb1f7422a517ced32cc74f909 is the first bad commit
commit dbe75982457cfe6bb1f7422a517ced32cc74f909
Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Date:   Mon Sep 9 15:35:42 2013 +0100

    sna/hsw: Fix the event selection for scanline waits on pipe A

Reproduce Steps:
------------------------------
1. xinit&
2. mplayer -vo xv /home/testframework/MPEG-2.mpeg</pre>
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