<html>
<head>
<base href="https://bugs.freedesktop.org/" />
</head>
<body>
<p>
<div>
<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Lubuntu 1404 Kernel 3.19 the DDI1_BKLTCTL is no signal at S3"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94245#c10">Comment # 10</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - Lubuntu 1404 Kernel 3.19 the DDI1_BKLTCTL is no signal at S3"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94245">bug 94245</a>
from <span class="vcard"><a class="email" href="mailto:ville.syrjala@linux.intel.com" title="Ville Syrjala <ville.syrjala@linux.intel.com>"> <span class="fn">Ville Syrjala</span></a>
</span></b>
<pre>(In reply to shadow from <a href="show_bug.cgi?id=94245#c9">comment #9</a>)
<span class="quote">>
> The DDI1_BKLTCTL is PWM signal. It can be used at Windows OS. Does it not
> use at the Linux OS?</span >
As Jani stated, the problem is that the port is identified as DP rather than
DP. Please attach a copy of /sys/kernel/debug/dri/0/i915_opregion so we can
check the VBT.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
<li>You are the assignee for the bug.</li>
<li>You are the QA Contact for the bug.</li>
</ul>
</body>
</html>