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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BSW] Regression - Black screen when booting - aux not responding"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91599">91599</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[BSW] Regression - Black screen when booting - aux not responding
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>critical
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>christophe.prigent@intel.com
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>Platform: Braswell M
Hardware
CPU : Intel(R) CPU @ 1.52 GHz (family: 6, model: 76 stepping: 3)
SoC : BSW C0
CRB : BRASWELL RVP Fab2
Mandatory Reworks : All
Feature Reworks: F28, F32,F33 & F37
Optional reworks : O-01a
Software
BIOS : BRAS.X64.B074.R00.1505311952
TXE FW : 2.0.0.2064
Ksc : 1.08
Linux distribution: Ubuntu 14.04 LTS 64 bits
Kernel : drm-intel-nightly 308b72e08b237aa7cde758fc44f88851710e417d 4.2.0-rc5
from git://anongit.freedesktop.org/drm-intel
Mesa: mesa-10.6.3 ddc976368fef367e464472ebcc2ac4fd89eb9fd8 from
<a href="http://cgit.freedesktop.org/mesa/mesa/">http://cgit.freedesktop.org/mesa/mesa/</a>
Xf86_video_intel: 2.99.917 baec802b21387d04aebb10ac29e719a1800c5aa0 from
<a href="http://cgit.freedesktop.org/xorg/driver/xf86-video-intel/">http://cgit.freedesktop.org/xorg/driver/xf86-video-intel/</a>
Libdrm: libdrm-2.4.62 ba4b5ac010ab85406ec52e3906e13d58cd9aa782 from
<a href="http://cgit.freedesktop.org/mesa/drm/">http://cgit.freedesktop.org/mesa/drm/</a>
Cairo: 1.14.2 from 93422b3cb5e0ef8104b8194c8873124ce2f5ea2d
<a href="http://cgit.freedesktop.org/cairo">http://cgit.freedesktop.org/cairo</a>
libva: libva-1.6.0 a8008998bc0d4a76ae6927607c048e52ba50fd0e from
<a href="http://cgit.freedesktop.org/libva/">http://cgit.freedesktop.org/libva/</a>
intel-driver: 1.6.0 32268c46d538667d437dc9266aa4c183e51c1286 from
<a href="http://cgit.freedesktop.org/vaapi/intel-driver">http://cgit.freedesktop.org/vaapi/intel-driver</a>
Xserver: xorg-server-1.17.2 2123f7682d522619f101b05fb75efa75dabbe371 from
<a href="http://cgit.freedesktop.org/xorg/xserver">http://cgit.freedesktop.org/xorg/xserver</a>
Kernel commit log:
commit 308b72e08b237aa7cde758fc44f88851710e417d
Author: Daniel Vetter
Date: Fri Aug 7 19:09:47 2015 +0200
drm-intel-nightly: 2015y-08m-07d-17h-08m-56s UTC integration manifest
Preconditions:
--------------
No special kernel boot options
Steps:
-------
1. Boot
Actual result:
--------------
1. Ubuntu login screen appears 1 second. Then screen is black.
Expected result:
----------------
1. Screen stays on
Info
------
Works with external HDMI screen</pre>
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