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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 --- - [HSW Regression]igt/kms_setmode/clone-exclusive-crtc causes system hang"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=78374">78374</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>[HSW Regression]igt/kms_setmode/clone-exclusive-crtc causes system hang
          </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>jinxianx.guo@intel.com
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </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>*System Environment:
--------------------------
Regression: Yes.  
This case was failed before (<a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [HSW]igt/kms_setmode/clone-exclusive-crtc fail"
   href="show_bug.cgi?id=68463">Bug 68463</a>)

Non-working platforms: HSW

 *kernel: 
--------------------------
-nightly: 30c8c9cd8bc88d6ae70f09d403e725b51e0bd7dd (fails)
-queued: bf67a6fd5ef8ef7f6a8548bc9a6441b290bf2752 (fails)
    Author: Ville Syrjälä <<a href="mailto:ville.syrjala@linux.intel.com">ville.syrjala@linux.intel.com</a>>
    Date:   Fri May 2 11:35:51 2014 +0300

    drm/i915/chv: Add DPINVGTT registers defines for Cherryview

    Due to Pipe C DPINVGTT has more bits on CHV.

    v2: Fix comment to say VLV/CHV (Rafael)

    Reviewed-by: Rafael Barbalho <<a href="mailto:rafael.barbalho@intel.com">rafael.barbalho@intel.com</a>>
    Signed-off-by: Ville Syrjälä <<a href="mailto:ville.syrjala@linux.intel.com">ville.syrjala@linux.intel.com</a>>
    Signed-off-by: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>

-fixes: 0aa7de323a32ca0b27769901b9607fc892b90dbc (fails)
    Author: Jani Nikula <<a href="mailto:jani.nikula@intel.com">jani.nikula@intel.com</a>>
    Date:   Tue May 6 14:56:52 2014 +0300

    drm/i915: use lane count and link rate from VBT as minimums for eDP

    Most likely the minimums for both should be enough for enabling the
    native resolution on the eDP, and we'll end up using the predetermined
    optimal link config for the panel.

    v2: Add debug prints.

    Bugzilla: <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED FIXED - [Haswell regression] eDP panel blank screen: link train fails"
   href="show_bug.cgi?id=73539">https://bugs.freedesktop.org/show_bug.cgi?id=73539</a>
    Tested-by: Markus Blank-Burian <<a href="mailto:burian@muenster.de">burian@muenster.de</a>>
    Reviewed-by: Damien Lespiau <<a href="mailto:damien.lespiau@intel.com">damien.lespiau@intel.com</a>>
    Signed-off-by: Jani Nikula <<a href="mailto:jani.nikula@intel.com">jani.nikula@intel.com</a>>

 *Bug detailed description:
-----------------------------
igt/kms_setmode/clone-exclusive-crtc causes system hang

unable to get dmesg due to the system was hang and the machine haven't serial
port.

Output:
  ./kms_setmode --run-subtest clone-exclusive-crtc
IGT-Version: 1.6-g4bd9fe6 (x86_64) (Linux:
3.14.0-rc7_drm-intel-next-queued_1bf70d_20140328+ x86_64)
Testing: clone-exclusive-crtc 2 connector combinations
  Test id#1 CRTC count 2
    CRTC[3] [Pipe A] Mode: 1920x1080@60Hz Connectors: eDP-1[10]
    CRTC[5] [Pipe B] Mode: 640x480@60Hz Connectors: HDMI-A-1[18] (NC)


 *Reproduce steps:
---------------------------- 
1. ./kms_setmode --run-subtest clone-exclusive-crtc</pre>
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