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<body><span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [byt] VSync (for windowed updates) dysfunctional"
href="https://bugs.freedesktop.org/show_bug.cgi?id=69869">bug 69869</a>
<br>
<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Severity</td>
<td>critical
</td>
<td>normal
</td>
</tr>
<tr>
<td style="text-align:right;">Priority</td>
<td>high
</td>
<td>low
</td>
</tr>
<tr>
<td style="text-align:right;">Summary</td>
<td>[byt] GPU hang when mplayer playing video with SNA
</td>
<td>[byt] VSync (for windowed updates) dysfunctional
</td>
</tr></table>
<p>
<div>
<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [byt] VSync (for windowed updates) dysfunctional"
href="https://bugs.freedesktop.org/show_bug.cgi?id=69869#c32">Comment # 32</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [byt] VSync (for windowed updates) dysfunctional"
href="https://bugs.freedesktop.org/show_bug.cgi?id=69869">bug 69869</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>Haven't been able to resolve how to make vsync work on Baytrail, so applied
commit bd22abee8f33b20ff6bc7297b0a9ae8708d18727
Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Date: Thu Nov 7 22:27:50 2013 +0000
sna: Update Baytrail VSync logic
My current best guess at the glaring hole in the spec that is
synchronisation to vertical refresh.
Note that this leaves VSync disabled for BYT for now as it is
ineffective - but at least it now doesn't hang!
Bugzilla: <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [byt] VSync (for windowed updates) dysfunctional"
href="show_bug.cgi?id=69869">https://bugs.freedesktop.org/show_bug.cgi?id=69869</a>
Signed-off-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
to prevent the hangs. Downgrading priority.</pre>
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