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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - drm/i915 composite TV-OUT shows vertical flickering with kernel >= 3.6.11"
href="https://bugs.freedesktop.org/show_bug.cgi?id=63609">63609</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>drm/i915 composite TV-OUT shows vertical flickering with kernel >= 3.6.11
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>critical
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>pierre.assal@verint.com
</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=78092" name="attach_78092" title="dmesg with drm.debug=0xe">attachment 78092</a> <a href="attachment.cgi?id=78092&action=edit" title="dmesg with drm.debug=0xe">[details]</a></span>
dmesg with drm.debug=0xe
Hi
I have a custom PC with a custom motherboard from Advantech which has a E2160 @
1.80GHz intel CPU and the i915 intel chipset.
I have recently updated the kernel that I use from version 2.6.39 to 3.6.11 and
I have a problem with the i915 composite TV-OUT. This video output shows
vertical flickering with the new kernel. Also I have noticed that the TV-OUT is
no more enabled at kernel boot (it was enabled with kernel 2.6.39).
Then I have tried with the latest kernels 3.8.7 & 3.9-rc7 from krnel.org. With
these kernels, the TV-OUT is now enabled at kernel boot but is still flickering
vertically.
Then I have tried with kernels 3.0.73, 3.2.43 and finally 3.4.40. And I have
found that the TV-OUT seems to have been broken in kernel 3.4.40.
Can anyone help me in fixing this issue with kernel 3.6.11?
Attached you will find dmesg logs with drm.debug=0xe.
Regards,
Pierre Assal</pre>
</div>
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