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    <body><span class="vcard"><a class="email" href="mailto:bugs@mblankhorst.nl" title="Maarten Lankhorst <bugs@mblankhorst.nl>"> <span class="fn">Maarten Lankhorst</span></a>
</span> changed
              <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED FIXED - [drm:drm_calc_timestamping_constants [drm]] *ERROR* crtc 21: Can't calculate constants, dotclock = 0!"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=92580">bug 92580</a>
          <br>
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          <tr>
            <th>What</th>
            <th>Removed</th>
            <th>Added</th>
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           <td style="text-align:right;">Resolution</td>
           <td>---
           </td>
           <td>FIXED
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           <td style="text-align:right;">Status</td>
           <td>NEW
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           <td>RESOLVED
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            <b><a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED FIXED - [drm:drm_calc_timestamping_constants [drm]] *ERROR* crtc 21: Can't calculate constants, dotclock = 0!"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=92580#c1">Comment # 1</a>
              on <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED FIXED - [drm:drm_calc_timestamping_constants [drm]] *ERROR* crtc 21: Can't calculate constants, dotclock = 0!"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=92580">bug 92580</a>
              from <span class="vcard"><a class="email" href="mailto:bugs@mblankhorst.nl" title="Maarten Lankhorst <bugs@mblankhorst.nl>"> <span class="fn">Maarten Lankhorst</span></a>
</span></b>
        <pre>Probably fixed by commit 7f4c62840cc416986f983a8c68f7010c97e06daf
Author: Ville Syrjälä <<a href="mailto:ville.syrjala@linux.intel.com">ville.syrjala@linux.intel.com</a>>
Date:   Thu Sep 10 18:59:07 2015 +0300

    drm/i915: Assign hwmode after encoder state readout

I believe this was backported to v4.3 before release, as commit
c4816c7389d8dbcad036be7e5a34584289d9f590
Author: Ville Syrjälä <<a href="mailto:ville.syrjala@linux.intel.com">ville.syrjala@linux.intel.com</a>>
Date:   Thu Sep 10 18:59:07 2015 +0300

    drm/i915: Assign hwmode after encoder state readout</pre>
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