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

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [i915] Problem with pch dplls sharing. X fails to start with pipe_state doesn't match."
   href="https://bugs.freedesktop.org/show_bug.cgi?id=67906">67906</a>
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[i915] Problem with pch dplls sharing. X fails to start with pipe_state doesn't match.
          </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>Linux (All)
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>blami@blami.net
          </td>
        </tr>

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

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

        <tr>
          <th>Version</th>
          <td>XOrg CVS
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>DRM/Intel
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>DRI
          </td>
        </tr></table>
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        <pre>Created <span class=""><a href="attachment.cgi?id=83842" name="attach_83842" title="dmesg with drm.debug=0xe">attachment 83842</a> <a href="attachment.cgi?id=83842&action=edit" title="dmesg with drm.debug=0xe">[details]</a></span>
dmesg with drm.debug=0xe

Linux Kernel 3.11-rc4
Hardware: Lenovo Thinkpad X230 (Ivy Bridge) docked in MiniDock 3 with 2xDVI.

When both DVI displays are attached only one DVI display and LVDS are enabled
during boot (console). When trying to start X server it segfaults with (full
backtrace in attached dmesg):

srp 08 16:03:39 x230 kernel: WARNING: CPU: 0 PID: 2886 at
drivers/gpu/drm/i915/intel_display.c:8284 check_crtc_state+0x58f/0xa20()
srp 08 16:03:39 x230 kernel: pipe state doesn't match!

With only one DVI display attached everything works as expected.
Also on older stable kernels 3.9.x, 3.10.x everything works and all three
displays can be used as expected.</pre>
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