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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 - Heavy tearing with xf86-video-intel"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93679">93679</a>
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<th>Summary</th>
<td>Heavy tearing with xf86-video-intel
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>XOrg git
</td>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
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<th>OS</th>
<td>Linux (All)
</td>
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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
</td>
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<th>Component</th>
<td>DRM/Intel
</td>
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
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<th>Reporter</th>
<td>carstenmattner@gmail.com
</td>
</tr>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
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<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>I'm consistently seeing heavy tearing in Firefox and mpv on Intel HD
Graphics 3000 (i7 2640M), even with _any combination_ of the following
xorg.conf settings. Tested on linux 4.1.15 and 4.3.3.
Option "DRI" "3"/"2"
Option "TearFree" "true"/"false"
Option "SwapbuffersWait" "true"/"false"
Option "AccelMethod" "glamor"/"sna"
It happens with all video-out modes in mpv (x11, xv, vaapi, opengl,
opengl-hq), with or without vaapi decoding. The only way to avoid this
is by running 'compton --backend xr_glx_hybrid --vsync opengl-swc. But
this is a workaround that forces vsync unconditionally for everything,
anytime, with its disadvantages.
Aren't TearFree and SwapbuffersWait supposed to prevent this?
On 945GM, with no custom Xorg configuration, I see minimal tearing in
Firefox and sometimes mpv, which also can be worked around with forced
vsync. Tested on linux 4.1.15.
Distro: Arch Linux
Kernel: 4.1.15 and 4.3.3
Driver: xf86-video-intel 1:2.99.917+519+g8229390
Xorg: xorg-server 1.18.0-4
mpv: 0.14.0
There are no warnings or errors in any of the logs.</pre>
</div>
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