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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 - Screen Flickering on Intel Card"
href="https://bugs.freedesktop.org/show_bug.cgi?id=95010">95010</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Screen Flickering on Intel Card
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
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<th>Version</th>
<td>XOrg git
</td>
</tr>
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<th>Hardware</th>
<td>x86 (IA32)
</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>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
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<th>Component</th>
<td>DRM/Intel
</td>
</tr>
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>carlo.abelli@gmail.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>I have a Dell XPS 13 running Arch Linux. Updating to kernel version 4.5.0 has
caused screen flickering (quick black flashes that come in bursts). Downgrading
to 4.4.5 does fix this flickering. Not sure exactly what the issue is but it
persists whether the xf86-video-intel driver is installed or not.
dmesg reports the following error when running kernel 4.5.0 but not 4.4.5:
[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO
underrun
Perhaps this is related. Here the thread on Arch Linux forums:
<a href="https://bbs.archlinux.org/viewtopic.php?pid=1620382#p1620382">https://bbs.archlinux.org/viewtopic.php?pid=1620382#p1620382</a>
Booting with i915.enable_rc6=0 solves the issue; however this is just a
temporary fix in my opinion.
Bug was initially filed here:
<a href="https://bugzilla.kernel.org/show_bug.cgi?id=116431">https://bugzilla.kernel.org/show_bug.cgi?id=116431</a></pre>
</div>
</p>
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