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<base href="https://bugs.freedesktop.org/" />
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [HSW regression bisected] kernel lockup during early boot"
href="https://bugs.freedesktop.org/show_bug.cgi?id=83166">83166</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>[HSW regression bisected] kernel lockup during early boot
</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>thilo@ginkel.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</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>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=105358" name="attach_105358" title="Camera photo of locked up screen">attachment 105358</a> <a href="attachment.cgi?id=105358&action=edit" title="Camera photo of locked up screen">[details]</a></span>
Camera photo of locked up screen
Prompted by a request in <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED --- - [HSW] kernel BUG at drivers/gpu/drm/i915/i915_gem.c:4111 (i915_gem_object_unpin_from_display_plane+0x12/0x40)"
href="show_bug.cgi?id=82207">bug #82207</a> to re-test another bug in drm-intel-nighly
(c30b73c) I was confronted with an early kernel lockup during boot happening
when plymouth switches to the FB console to prompt for my LUKS password. Once
that happens the screen just shows a few bright pixels and the system can only
be rebooted by long-pressing the power button. I bisected the issue and came up
with the following responsible commit:
commit d91a2cb8e5104233c02bbde539bd4ee455ec12ac
Author: Sonika Jindal <<a href="mailto:sonika.jindal@intel.com">sonika.jindal@intel.com</a>>
Date: Fri Aug 22 14:06:04 2014 +0530
drm/i915: Add 180 degree primary plane rotation support
System environment:
-- chipset: QM87
-- system architecture: x86_64
-- xf86-video-intel/xserver/mesa/libdrm version:
- xf86-video-intel: 2.99.914 (git commit
f36b7a4aac86f5874c32d8f516ac1f00a6c8d8b3)
- xserver: 1.15.1
- mesa: 10.1.3
- libdrm: 2.4.52
-- kernel version: drm-intel-nightly c30b73c
-- Linux distribution: Kubuntu 14.04
-- Machine or mobo model: Lenovo ThinkPad T440p 20AN w/ Core i7-4800MQ
-- Display connector: DVI, DisplayPort
The red stripes in the first few lines of the screen are only present for some
revisions, so they may be caused by a different commit.</pre>
</div>
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