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<base href="https://bugs.freedesktop.org/" />
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<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 extemely dim on Dell Latitude D630"
href="https://bugs.freedesktop.org/show_bug.cgi?id=79423">79423</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>Screen extemely dim on Dell Latitude D630
</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>mmilgram@redhat.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>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>Previously reported against Fedora here:
<a href="https://bugzilla.redhat.com/show_bug.cgi?id=1094066">https://bugzilla.redhat.com/show_bug.cgi?id=1094066</a>
It seems that the backligt goes dim when the laptop boots.
I bisected the kernel, and found that the issue started with the following
commit:
b35684b8fa94e04f55fd38bf672b737741d2f9e2 is the first bad commit
commit b35684b8fa94e04f55fd38bf672b737741d2f9e2
Author: Jani Nikula <<a href="mailto:jani.nikula@intel.com">jani.nikula@intel.com</a>>
Date: Thu Nov 14 12:13:41 2013 +0200
drm/i915: do full backlight setup at enable time
We should now have all the information we need to do a full
initialization of the backlight registers.
v2: Keep QUIRK_NO_PCH_PWM_ENABLE for now (Imre).
Signed-off-by: Jani Nikula <<a href="mailto:jani.nikula@intel.com">jani.nikula@intel.com</a>>
Reviewed-by: Imre Deak <<a href="mailto:imre.deak@intel.com">imre.deak@intel.com</a>>
Signed-off-by: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
:040000 040000 0aae5515ca62ff1bfd2e1c2769e30c58b016ffeb
01c2f8cd145f8cf29730908d52e7e89b787a059e M drivers
I tested with the latest 3.15-rc kernel (as of 2 nights ago), and it has the
same problem.</pre>
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