<html>
<head>
<base href="https://bugs.freedesktop.org/" />
</head>
<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 --- - Screen turns to coloured snowstorm (or blanks) when KMS kicks in"
href="https://bugs.freedesktop.org/show_bug.cgi?id=62771">62771</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>Screen turns to coloured snowstorm (or blanks) when KMS kicks in
</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>mrdemeanour@jackpot.uk.net
</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>XOrg CVS
</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=77065" name="attach_77065" title="dmesg with drm.debug=0xe">attachment 77065</a> <a href="attachment.cgi?id=77065&action=edit" title="dmesg with drm.debug=0xe">[details]</a></span>
dmesg with drm.debug=0xe
Linux boots, but display 'fails' when i915 KMS kicks in. Console input is
possible, and system is useable via ssh; X can be launched from console.
'Fails': on tested 2.6 and 3.2 kernels, the entire screen is taken over by a
colourful snowstorm. On 3.8.4, the snowstorm flashes briefly then the screen
blanks; disconnecting and reconnecting the display again yields a colourful
snowstorm. Launching X will also transform the black screen into a snowstorm.
I've tried with built-in i915 (fails on transition from initrd), loadable
module (fails when i915 loads), and with i915 in initrd (fails immediately).
The system is a Acer Revo RL80, which has only DVI-I output. The display is a
projector with native resolution 1024x576.
With KMS disabled in the kernel, the failure doesn't occur; but i915 cannot be
used for X.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the QA Contact for the bug.</li>
<li>You are the assignee for the bug.</li>
</ul>
</body>
</html>