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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 - TearFree breaks when playing back videos in Firefox with GPU accelerated windows enabled in Firefox"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96847">96847</a>
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<th>Summary</th>
<td>TearFree breaks when playing back videos in Firefox with GPU accelerated windows enabled in Firefox
</td>
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<th>Product</th>
<td>xorg
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>All
</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>Driver/intel
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<th>Assignee</th>
<td>chris@chris-wilson.co.uk
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<th>Reporter</th>
<td>nw9165-3201@yahoo.com
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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<div>
<pre>Hi,
running Xubuntu 16.04 on a Core i7-6700K here.
There's a lot of tearing by default. But when setting up the following xorg
conf file:
/etc/X11/xorg.conf.d/20-intel.conf
with the following contents:
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
Option "AccelMethod" "sna"
Option "DRI" "3"
Option "SwapbuffersWait" "true"
Option "TripleBuffer" "true"
Option "TearFree" "true"
EndSection
the tearing is gone.
TearFree is working fine.
But when enabling GPU accelerated windows in Firefox 47 via setting
"layers.acceleration.force-enabled" to "true" in about:config
(<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=594876">https://bugzilla.mozilla.org/show_bug.cgi?id=594876</a>), and then watching a
video on YouTube for example, TearFree suddenly seems to break after a short
amount of time.
There suddenly is tearing again when moving windows around for example.
The tearing also does not go away when closing Firefox.
After rebooting, TearFree is working again (until playing back a video in
Firefox again).
Any chance you could fix that?
Regards</pre>
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