<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 --- - [BDW-Y ] DP display not light after entering the kernel."
href="https://bugs.freedesktop.org/show_bug.cgi?id=79443">79443</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>[BDW-Y ] DP display not light after entering the kernel.
</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>All
</td>
</tr>
<tr>
<th>Reporter</th>
<td>lei.a.liu@intel.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</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=100148" name="attach_100148" title="dmesg">attachment 100148</a> <a href="attachment.cgi?id=100148&action=edit" title="dmesg">[details]</a></span>
dmesg
==System Environment==
--------------------------
Regression: No.
Non-working platforms: BDW-Y
==kernel==
--------------------------
origin/drm-intel-nightly: 9f53d4f6f55aa0c037f299dbe2986eec9151be9b(fails)
drm-intel-nightly: 2014y-05m-28d-00h-00m-47s integration manifest
origin/drm-intel-next-queued: 38d811545c61cf188beac860615a08fb32f73eb1(fails)
drm/i915/vlv: add pll assertion when disabling DPIO common well
origin/drm-intel-fixes: d23db88c3ab233daed18709e3a24d6c95344117f(fails)
drm/i915: Prevent negative relocation deltas from wrapping
==Bug detailed description==
-----------------------------
Booting with DP->HDMI ,4K monitor can't be lighted up after entering the
kernel. But normal monitor can be lighted up successfully, and original Ubuntu
Kernel can light up 4K monitor.
==Reproduce steps==
----------------------------
Boot with DP->HDMI 4k monitor.</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>