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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 --- - [BDW Bisected]Screen is frozen since kernel boot."
href="https://bugs.freedesktop.org/show_bug.cgi?id=82750">82750</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 Bisected]Screen is frozen since kernel boot.
</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>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=104800" name="attach_104800" title="dmesg">attachment 104800</a> <a href="attachment.cgi?id=104800&action=edit" title="dmesg">[details]</a></span>
dmesg
==System Environment==
--------------------------
Regression: Yes. Good commit:82e3b8c130f046b7dd1e7898c10e40edb52fee6d
Non-working platforms: Broadwell
==kernel==
--------------------------
-nightly: 186631131a9289dad22f51315d78b9b6ac5b425f (failed)
drm-intel-nightly: 2014y-08m-15d-14h-55m-27s integration manifest
-queued: ecca3fd0ea82c45b558f68b1ff3bf6685b443ab1 (failed)
drm/i915/bdw: Enable Logical Ring Contexts (hence, Execlists)
-fixes: 103ae732ad26141515f109c80b5c1ced16e457c3 (worked)
drm/i915: Don't try to enable cursor from setplane when crtc is disabled
==Bug detailed description==
-----------------------------
Screen frozen as picture attached. testdisplay -i can't detect eDP monitor.
==Reproduce steps==
----------------------------
1. boot machine up
==Bisect results==
Bisect shows: ecca3fd0ea82c45b558f68b1ff3bf6685b443ab1 is the first bad commit
commit ecca3fd0ea82c45b558f68b1ff3bf6685b443ab1
Author: Oscar Mateo <<a href="mailto:oscar.mateo@intel.com">oscar.mateo@intel.com</a>>
AuthorDate: Thu Jul 24 17:04:49 2014 +0100
Commit: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
CommitDate: Fri Aug 15 14:48:25 2014 +0200
drm/i915/bdw: Enable Logical Ring Contexts (hence, Execlists)
The time has come, the Walrus said, to talk of many things.</pre>
</div>
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