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<base href="https://bugs.freedesktop.org/" />
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<th>Priority</th>
<td>high
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [HSW Regression]boot system has <3>[ 1.627079] [drm:intel_pipe_config_compare] *ERROR* mismatch in port_clock (expected 146250, found 270000)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=74955">74955</a>
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<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
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<th>Summary</th>
<td>[HSW Regression]boot system has <3>[ 1.627079] [drm:intel_pipe_config_compare] *ERROR* mismatch in port_clock (expected 146250, found 270000)
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
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<th>Severity</th>
<td>major
</td>
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<th>Classification</th>
<td>Unclassified
</td>
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Reporter</th>
<td>huax.lu@intel.com
</td>
</tr>
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<th>Hardware</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Component</th>
<td>DRM/Intel
</td>
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<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=94037" name="attach_94037" title="dmesg">attachment 94037</a> <a href="attachment.cgi?id=94037&action=edit" title="dmesg">[details]</a></span>
dmesg
System Environment:
--------------------------
Platform: Haswell
Kernel: (drm-intel-nightly)2f589112609b0a964b3d78c99c0f3a83ac16add6
Bug detailed description:
-----------------------------
Clean boot system, reports <3>[ 1.627079] [drm:intel_pipe_config_compare]
*ERROR* mismatch in port_clock (expected 146250, found 270000).
It happens on Haswell with -queued and -nightly kernel. It doesn't happen on
-fixes kernel.
The latest known good commit:3803887e245444aa465d9f3d5a4de6679e21ea45
The latest known bad commit: b6ae3c7c60161a9b1e15b1ccd6412fad65b7d9cf
Reproduce steps:
----------------------------
1. Clean boot system
2. dmesg -r | egrep "<[1-3]>" |grep drm</pre>
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