<html>
    <head>
      <base href="https://bugs.freedesktop.org/" />
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - Failed modeset causes static or out-of-range error on gen6 -- *ERROR* FDI train 2 fail!"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=60029">60029</a>
          </td>
        </tr>

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

        <tr>
          <th>Summary</th>
          <td>Failed modeset causes static or out-of-range error on gen6 -- *ERROR* FDI train 2 fail!
          </td>
        </tr>

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

        <tr>
          <th>Severity</th>
          <td>blocker
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux (All)
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>forest@alittletooquiet.net
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86 (IA32)
          </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>Created <span class=""><a href="attachment.cgi?id=73841" name="attach_73841" title="dmesg output for drm-intel-nightly 2013-01-29 kernel">attachment 73841</a> <a href="attachment.cgi?id=73841&action=edit" title="dmesg output for drm-intel-nightly 2013-01-29 kernel">[details]</a></span>
dmesg output for drm-intel-nightly 2013-01-29 kernel

I get either an out-of-range error or a colorful static pattern using this
hardware:

<a href="http://us.acer.com/ac/en/US/content/model/DT.VFGAA.001">http://us.acer.com/ac/en/US/content/model/DT.VFGAA.001</a>

This is regardless of connector, including VGA via DVI adapter.

I suspect this is a factor:

[    2.249615] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x700
[    2.249617] [drm:gen6_fdi_link_train], FDI train 1 done.
[    2.250267] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x0
[    2.250319] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x0
[    2.250371] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x0
[    2.250423] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x0
[    2.250475] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x0
[    2.251023] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x0
[    2.251074] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x0
[    2.251126] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x0
[    2.251178] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x0
[    2.251230] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x0
[    2.251779] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x0
[    2.251831] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x0
[    2.251882] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x0
[    2.251935] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x0
[    2.251987] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x0
[    2.252535] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x0
[    2.252587] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x0
[    2.252639] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x0
[    2.252691] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x0
[    2.252743] [drm:gen6_fdi_link_train], FDI_RX_IIR 0x0
[    2.252794] [drm:gen6_fdi_link_train] *ERROR* FDI train 2 fail!
[    2.252795] [drm:gen6_fdi_link_train], FDI train done.

I'm currently testing with an Ubuntu mainline nightly build:

<a href="http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-nightly/2013-01-29-raring/">http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-nightly/2013-01-29-raring/</a>

It appears this has all of the available fixes from Daniel Vetter's
drm-intel-fixes branch.

I will do whatever I can to help debug.

Thanks,
Forest</pre>
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