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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Video artifacts with FBC enabled on HSW using GNOME"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96461">96461</a>
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<th>Summary</th>
<td>Video artifacts with FBC enabled on HSW using GNOME
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>DRI git
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<th>Hardware</th>
<td>Other
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
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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>thatslyude@gmail.com
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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
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=124421" name="attach_124421" title="FBC test suite results">attachment 124421</a> <a href="attachment.cgi?id=124421&action=edit" title="FBC test suite results">[details]</a></span>
FBC test suite results
This was kind of a difficult bug to track down. If you're using a Haswell
system running GNOME and you have fbc completely enabled and working, playing
videos can result in video artifacts. Steps to reproduce:
- Run GNOME
- Ensure FBC is enabled and active
- Download a movie, I used the ogg version of Big Buck Bunny for this
- Run `gst-launch-1.0 filesrc location='some_movie.ogg' ! decodebin !
glimagesink` in a terminal
- Watch for about over a minute, you'll see small horizontal lines go down the
screen.
Interestingly enough, there's three things that make this bug go away:
- Turning off FBC through `i915.enable_fbc=0`
- Using something other then GNOME
- Using the modesetting DDX
Seen on a ThinkPad T440s</pre>
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