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        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - connector_state->crtc warnings"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=95199">95199</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>connector_state->crtc warnings
          </td>
        </tr>

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

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

        <tr>
          <th>Hardware</th>
          <td>x86 (IA32)
          </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>sitsofe@yahoo.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>Created <span class=""><a href="attachment.cgi?id=123335" name="attach_123335" title="dmesg">attachment 123335</a> <a href="attachment.cgi?id=123335&action=edit" title="dmesg">[details]</a></span>
dmesg

Description of the problem:
When I boot up an Ubuntu 4.4.0-21-generic kernel on my EeePC 900 I get various
!connector_state->crtc warnings.

Steps to reproduce:
1. Boot an Ubuntu 4.4.0-21-generic kernel on an EeePC 900.

Expected results:
No warnings

Actual results:
Warnings like:
[    2.504680] WARNING: CPU: 0 PID: 6 at
/build/linux-TGcUZh/linux-4.4.0/drivers/gpu/drm/i915/intel_display.c:12155
intel_atomic_check+0x307/0x6d0 [i915]()
[    2.504685] WARN_ON(!connector_state->crtc)

How reproducible is the problem?
It is reproducible every time.

Version information:
EeePC 900
Ubuntu 16.04 i686
Intel 915GM
xorg 1:7.7+13ubuntu3
xserver-xorg 1:7.7+13ubuntu3
xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1
linux-image-4.4.0-21-generic 4.4.0-21.37</pre>
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