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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96284">96284</a>
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<th>Summary</th>
<td>[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
</td>
</tr>
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<th>Product</th>
<td>xorg
</td>
</tr>
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<th>Version</th>
<td>7.7 (2012.06)
</td>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
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<th>OS</th>
<td>Linux (All)
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>major
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>Driver/intel
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<th>Assignee</th>
<td>chris@chris-wilson.co.uk
</td>
</tr>
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<th>Reporter</th>
<td>bollocks.k2@gmail.com
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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</tr></table>
<p>
<div>
<pre>I'm using a Tecra M11 with a QM57 chipset and a Intel 560M processor with
Ironlake graphics.
uname -m = x86_64
xf86-video-intel version: This has been reproduced with a git clone from May 30
2016. I noticed it with 2.99.917-19.20160530.fc23 from the Fedora repo.
uname -r = 4.5.5-201.fc23.x86_64
does not occur with 4.4.9. it started happening in 4.5.0
Linux distro: Fedora 23 and I can also reproduce it on F24 Beta
I'm using the built in 1600x900 LCD as a display.
The problem is when I use ctrl+alt+f2/f1 to switch terminals the screen has
graphical glitches and sometimes freezes.
For a detailed description and lots of debugging output see my bug on Red Hat
Bugzilla.
<a href="https://bugzilla.redhat.com/show_bug.cgi?id=1339855">https://bugzilla.redhat.com/show_bug.cgi?id=1339855</a></pre>
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