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<base href="https://bugs.freedesktop.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Black screen after backlight is off"
href="https://bugs.freedesktop.org/show_bug.cgi?id=92878">92878</a>
</td>
</tr>
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<th>Summary</th>
<td>Black screen after backlight is off
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>DRI git
</td>
</tr>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
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<th>OS</th>
<td>Linux (All)
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>critical
</td>
</tr>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>DRM/Intel
</td>
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
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<th>Reporter</th>
<td>jeroko@gmail.com
</td>
</tr>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
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<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=119525" name="attach_119525" title="dmesg(dmr.debug=0xe) lspci lshw dmidecode">attachment 119525</a> <a href="attachment.cgi?id=119525&action=edit" title="dmesg(dmr.debug=0xe) lspci lshw dmidecode">[details]</a></span>
dmesg(dmr.debug=0xe) lspci lshw dmidecode
I have a Toshiba Satellite P50t-C-104, it has an Intel Broadwell i7-5500U CPU
with an itegrated graphics card and a nvidia GPU 950M. For the moment I'm just
trying to get the intel card working, all the linux distributions I have tried
fail to initialize the kernel modesetting, including after updating to the
official 4.3 kernel. It works though when using the latest drm-intel-nightly
complided from git, but there is a lot of functionality missing.
The biggest problem is that, if the backlight goes off (either by suspending
the laptop or by waiting for the screen to power off after a few minutes of no
use), then when the backlight goes on again the screen stays black until I
reboot.
Other issues are:
- I had to switch back to uxa "Accel method" in xorg.conf, the default sna
did't draw most of the text characters in the desktop.
- Function keys don't work.
- system architecture: x86_64
- kernel version: 4.3.0-drm-intel-nightly-20151109+
commit 62699a66482e7b56e8bfc0683d11d509b022147d
Author: Matt Roper <<a href="mailto:matthew.d.roper@intel.com">matthew.d.roper@intel.com</a>>
Date: Mon Nov 9 10:34:57 2015 -0800
drm-intel-nightly: 2015y-11m-09d-18h-34m-23s UTC integration manifest
- Linux distribution: Linux Mint 17.2
- Display connector: laptop lcd screen</pre>
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