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      <base href="https://bugs.freedesktop.org/" />
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    <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 --- - EQ overflow when start X with KMS-enabled radeon"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=57679">57679</a>
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>xorg-driver-ati@lists.x.org
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>EQ overflow when start X with KMS-enabled radeon
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>xorg-team@lists.x.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>mityukov@gmail.com
          </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>git
          </td>
        </tr>

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

        <tr>
          <th>Product</th>
          <td>xorg
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=70778" name="attach_70778" title="Full dmesg that I've got; Kernel was booted with drm.debug=1">attachment 70778</a> <a href="attachment.cgi?id=70778&action=edit" title="Full dmesg that I've got; Kernel was booted with drm.debug=1">[details]</a></span>
Full dmesg that I've got; Kernel was booted with drm.debug=1

I have dual-graphics laptop (AMD Fusion A6 based). Here's the hardware spec:

00:01.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI
BeaverCreek [Radeon HD 6520G]
02:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Caicos
[Radeon HD 6400M/7400M Series]


I can boot into console with KMS enabled, but when I start X Windows (twm, so,
not 3D, I believe), I get corrupted screen and the mouse cursor is either
locked or unlocked periodically (about 10 seconds for every state). Xorg.log
shows "EQ overflow" errors.

Graphics stack:
- DRM: radeon module; Kernel v3.6.5;
- Mesa 9.0.1;
- glamor(git)
- xf86-video-ati(git); built with --enable-glamor; 
P.S.: With EXA or even without explicit definition of "AccelMethod" the problem
remains the same. It is the same either with xf86-video-ati 7.0.0 (non-git).

Attaching dmesg and xorg log.</pre>
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