<html>
<head>
<base href="https://bugs.freedesktop.org/">
</head>
<body><span class="vcard"><a class="email" href="mailto:michel@daenzer.net" title="Michel Dänzer <michel@daenzer.net>"> <span class="fn">Michel Dänzer</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW - Flicker/tearing on MacBook Pro 11.5 Ubuntu 18.04"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107053">bug 107053</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;">QA Contact</td>
<td>
</td>
<td>xorg-team@lists.x.org
</td>
</tr>
<tr>
<td style="text-align:right;">Product</td>
<td>DRI
</td>
<td>xorg
</td>
</tr>
<tr>
<td style="text-align:right;">Assignee</td>
<td>dri-devel@lists.freedesktop.org
</td>
<td>xorg-team@lists.x.org
</td>
</tr>
<tr>
<td style="text-align:right;">Version</td>
<td>unspecified
</td>
<td>git
</td>
</tr>
<tr>
<td style="text-align:right;">Component</td>
<td>DRM/Radeon
</td>
<td>Server/Ext/DRI
</td>
</tr></table>
<p>
<div>
<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Flicker/tearing on MacBook Pro 11.5 Ubuntu 18.04"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107053#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Flicker/tearing on MacBook Pro 11.5 Ubuntu 18.04"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107053">bug 107053</a>
from <span class="vcard"><a class="email" href="mailto:michel@daenzer.net" title="Michel Dänzer <michel@daenzer.net>"> <span class="fn">Michel Dänzer</span></a>
</span></b>
<pre>From the Xorg log file:
[ 158.424] (WW) RADEON(0): flip queue failed: Device or resource busy
[ 158.424] (WW) RADEON(0): Page flip failed: Device or resource busy
[ 158.424] (EE) RADEON(0): present flip failed
This looks like a page flip is attempted while another one is still pending.
Unfortunately, handling that better turns out to be a surprisingly tricky
problem, but I think the best place would be xserver/present/present_scmd.c,
delaying the page flip until the previous one has completed.
Meanwhile, if you can try a GNOME on Wayland session, that might work better.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the assignee for the bug.</li>
</ul>
</body>
</html>