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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 - [NV94] INVALID_STATE error, X fails to start on GeForce 9600 GT with dual monitors, kernels 3.18.0-0.rc0.git8.2.fc22.1 onwards"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=85160">85160</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[NV94] INVALID_STATE error, X fails to start on GeForce 9600 GT with dual monitors, kernels 3.18.0-0.rc0.git8.2.fc22.1 onwards
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>xorg
          </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>critical
          </td>
        </tr>

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

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

        <tr>
          <th>Assignee</th>
          <td>nouveau@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>adamw@happyassassin.net
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>xorg-team@lists.x.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Running Fedora 21 with kernels from
<a href="https://alt.fedoraproject.org/pub/alt/rawhide-kernel-nodebug/">https://alt.fedoraproject.org/pub/alt/rawhide-kernel-nodebug/</a> (tracking 3.18
development).

I have kernel-3.18.0-0.rc0.git1.2.fc22.1.x86_64 ,
kernel-3.18.0-0.rc0.git8.2.fc22.1.x86_64 and
kernel-3.18.0-0.rc0.git9.2.fc22.1.x86_64 installed .
kernel-3.18.0-0.rc0.git1.2.fc22.1.x86_64 boots fine on my system, the other two
do not.

On git1 I get boot framebuffer output on both heads, then X starts properly. On
git8 and git9, I get boot framebuffer only on one head, then both screens go
into power saving mode when X starts, or one keeps cycling power-saving /
non-power-saving but never comes up.

The logs have a bunch of stuff, but it seems to kick off with an error:

nouveau E[   PDISP][0000:01:00.0] INVALID_STATE [UNK0B] chid 1 mthd 0x0080 data
0x00000000

I'll attach drm.debug=15 logs. Hardware is:

01:00.0 VGA compatible controller [0300]: NVIDIA Corporation G94 [GeForce 9600
GT] [10de:0622] (rev a1)

Ben Skeggs has one of the same cards, somewhere in his pile. May only be
reproducible with dual displays, I didn't try with just one yet.</pre>
        </div>
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