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      <base href="https://bugs.freedesktop.org/" />
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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 - [IVB Macbook HDMI] [drm:intel_dp_complete_link_train] *ERROR* failed to train DP, aborting"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=89908">89908</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[IVB Macbook HDMI] [drm:intel_dp_complete_link_train] *ERROR* failed to train DP, aborting
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>DRI
          </td>
        </tr>

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

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

        <tr>
          <th>Reporter</th>
          <td>chris.bainbridge@gmail.com
          </td>
        </tr>

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

        <tr>
          <th>CC</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Hardware: IVB Macbook Pro 13

Kernel: latest git 4.0-rc6+ f8b3d8a 
(also get same error with Debian kernel 3.16.0-4)

Reproduce:

- Boot with external monitor on HDMI port (using HDMI->DVI adaptor)

Result:

[    1.500888] [drm:intel_dp_complete_link_train] *ERROR* failed to train DP,
aborting
[    1.517432] [drm:ironlake_crtc_enable] *ERROR* mode set failed: pipe A stuck
xorg: laptop display blank, monitor corrupt

Full dmesg attached.

HDMI only = FAIL
HDMI+DP = FAIL
HDMI+DP1+DP2 = OK
DP1 = OK
DP1+DP2 = OK

Interestingly the triple monitor setup works ok but all other setups using HDMI
port fail. Setups without HDMI port work OK.</pre>
        </div>
      </p>
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