<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 --- - Backlight control broken on Dell XPS M1330 w/ kernel >= 3.14.1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=78653">78653</a>
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>Backlight control broken on Dell XPS M1330 w/ kernel >= 3.14.1
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>mikkeloscar@gmail.com
</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=98965" name="attach_98965" title="dmesg with drm.debug=0xe">attachment 98965</a> <a href="attachment.cgi?id=98965&action=edit" title="dmesg with drm.debug=0xe">[details]</a></span>
dmesg with drm.debug=0xe
Similar to <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED --- - Backlight control broken on Dell XPS13 w/ kernel 3.14-rc7"
href="show_bug.cgi?id=76276">https://bugs.freedesktop.org/show_bug.cgi?id=76276</a>. Since kernel
3.14.1 backlight control doesn't work on Dell XPS M1330 unless I do:
# echo 255000 > /sys/class/backlight/intel_backlight
to temporarily fix it.
As requested in <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED --- - Backlight control broken on Dell XPS13 w/ kernel 3.14-rc7"
href="show_bug.cgi?id=76276#c41">https://bugs.freedesktop.org/show_bug.cgi?id=76276#c41</a> I have
attached dmesg with drm.debug=0xe and /sys/kernel/debug/dri/0/i915_opregion. I
produced these on 3.15-rc5.</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 on the CC list for the bug.</li>
<li>You are the assignee for the bug.</li>
</ul>
</body>
</html>