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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - 3.18: i855GM KMS regression"
href="https://bugs.freedesktop.org/show_bug.cgi?id=87171">87171</a>
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<th>Summary</th>
<td>3.18: i855GM KMS regression
</td>
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<th>Product</th>
<td>xorg
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>x86 (IA32)
</td>
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Keywords</th>
<td>regression
</td>
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<th>Severity</th>
<td>critical
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>Driver/intel
</td>
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<th>Assignee</th>
<td>ville.syrjala@linux.intel.com
</td>
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<th>Reporter</th>
<td>bonbons67@internet.lu
</td>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
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<th>CC</th>
<td>daniel@ffwll.ch
</td>
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<pre>Created <span class=""><a href="attachment.cgi?id=110648" name="attach_110648" title="Displayed result with 3.18">attachment 110648</a> <a href="attachment.cgi?id=110648&action=edit" title="Displayed result with 3.18">[details]</a></span>
Displayed result with 3.18
On Acer TravelMate 66x with i855GM switching from 3.17 to 3.18 kernel scanout
to LVDS becomes mis-configured.
It looks like pixels are being displayed "interlaced" both horizontally and
vertically so that first pixel is at its expected location, pixel right of it
is two pixes further to the right, pixel at half screen (or is it 1/4 of
screen) is located right below first pixel.
See screenshots for visual representation. Further debug details will follow
with some delay, as well as bisection.</pre>
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