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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 - [SKL][Linux]: Getting huge lag in 4K eDP video playback"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91006">91006</a>
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<th>Summary</th>
<td>[SKL][Linux]: Getting huge lag in 4K eDP video playback
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
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<th>Version</th>
<td>DRI git
</td>
</tr>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>blocker
</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>
</tr>
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<th>Reporter</th>
<td>vijayakannanx.ayyathurai@intel.com
</td>
</tr>
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<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>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=116552" name="attach_116552" title="dmesg.log">attachment 116552</a> <a href="attachment.cgi?id=116552&action=edit" title="dmesg.log">[details]</a></span>
dmesg.log
System Environment:
--------------------------
Platform: SKL Linux
Kernel - (4.1-rc8) 644bfe268feb04544d89b52edba6bef6a2661ddc
drm kernel merge : 2015y-06m-15d-16h-39m-55s
Libdrm - (2.4.61) a1acffd4e0968ffa65b673163574188a00c9ab7e
Mesa - (10.7.0-devel) 7518fc3c66e9b5703b987bccca7970a344deadfa
vaapi - (0.38.0) 4763db1c2133d4e6b92355938ecb6f23a7767b6b
libva - (1.6.0.pre1) 4763db1c2133d4e6b92355938ecb6f23a7767b6b
intel-driver (1.6.0.pre1) 4a1c4d21f3428b08ef765d7f7de75b97006514ac
eDP resolution used : 3200 x 1800
Bug detailed description:
-----------------------------
We are observing huge lag in the video playback with the 4K eDP panels.
Isolation:
----------------------------
1. The same video is playing without lag with 2K eDP panels.
Reproduce steps:
----------------------------
1. Boot the SKL with the above mentioned config
2. Play a video
3. Observe the Video playback lagging issue.</pre>
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