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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [SKL GT3e][feature power/GT] Screen goes blank and computer crashes hard when RC6 is enabled"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95300">95300</a>
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<th>Summary</th>
<td>[SKL GT3e][feature power/GT] Screen goes blank and computer crashes hard when RC6 is enabled
</td>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
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<th>Component</th>
<td>DRM/Intel
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>thiago@kde.org
</td>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
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<pre>On the Dell XPS 13 9350 Developer Edition[1] model, I've been experiencing
random system-wide hard crashes that bring the entire machine down. Symptoms:
* screen goes blank
* screen does NOT turn off
* keyboard backlight still works and reacts to keypresses
* caps lock LED does not respond, SysRq rebooting does not respond
* network connectivity stops (no ping reply)
I don't have a crash log, since the machine goes down before anything gets
logged (if anything gets logged). I tried to dmesg -w | netcat to another
machine and nothing is received.
I have almost reliably reproduced the issue like this:
1) open chromium
2) go to <a href="http://speedtest.xfinity.com">http://speedtest.xfinity.com</a>
When i915.enable_rc6=0, the problem apparently disappears (still running more
extensively to be sure).
Tested with:
4.5.0
4.6.0-rc5
4.6.0-rc6
4.6.0-rc6 drm-intel-nightly (871c895)
Running 64-bit, OpenSUSE Tumbleweed, connected to the internal display panel
only (eDP). I have the latest firmwares.
SKL i7-6560U, graphics is 8086:1926 (glxinfo reports "MESA DRI Intel(R) Iris
Graphics 540 (Skylake GT3e)").
[1] <a href="http://www.dell.com/us/business/p/xps-13-9350-laptop-ubuntu/pd">http://www.dell.com/us/business/p/xps-13-9350-laptop-ubuntu/pd</a></pre>
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</p>
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