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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - wayland/weston EGL/GLESv2 client corruption/flicker on r600 mesa-10.x"
href="https://bugs.freedesktop.org/show_bug.cgi?id=72889">72889</a>
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<th>Assignee</th>
<td>wayland-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>wayland/weston EGL/GLESv2 client corruption/flicker on r600 mesa-10.x
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>mesa-dev@lists.freedesktop.org
</td>
</tr>
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<th>Severity</th>
<td>major
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
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<th>OS</th>
<td>Linux (All)
</td>
</tr>
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<th>Reporter</th>
<td>emiettin@edu.lahti.fi
</td>
</tr>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Version</th>
<td>git
</td>
</tr>
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<th>Component</th>
<td>EGL/Wayland
</td>
</tr>
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<th>Product</th>
<td>Mesa
</td>
</tr></table>
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<div>
<pre>On my Radeon HD 5770, upgrading from mesa-9.2.5 to either mesa-10.0.1 or
mesa-git master introduces (in both versions) a corruption/flickering bug
concerning wayland/weston EGL/GLESv2 clients. See
<a href="http://www.youtube.com/watch?v=RQXE4h-E8PI">http://www.youtube.com/watch?v=RQXE4h-E8PI</a> for a relevant screen capture.
It looks to me as if the glClear(GL_COLOR_BUFFER_BIT) call wasn't actually
coming into effect; instead, previous (or random) color data lingers in the
part of the frame buffer that isn't updated during rendering. The bug doesn't
really manifest itself in a weston client that updates each and every pixel
within each frame during rendering.
setup: Arch Linux x86_64 (Linux 3.12.5),
mesa-git (+ ati-dri-git & mesa-libgl-git). Bug also in 10.0.1 stable.
wayland/weston 1.3.0/1.3.1 as well as git</pre>
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