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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 - The Witcher 3: flickering regression with radeonsi"
href="https://bugs.freedesktop.org/show_bug.cgi?id=103874">103874</a>
</td>
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<th>Summary</th>
<td>The Witcher 3: flickering regression with radeonsi
</td>
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<th>Product</th>
<td>Mesa
</td>
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<th>Version</th>
<td>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>
</tr>
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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>Drivers/Gallium/radeonsi
</td>
</tr>
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
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<th>Reporter</th>
<td>shtetldik@gmail.com
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>With latest Mesa master, The Witcher 3 in Wine started performing worse and it
also introduced noticeable flickering (once in a few seconds).
I was able to narrow down this flickering to these commits by Marek:
adab7f16ffd3ea4c52e8d07f40ca6ae4868c3706 2017-11-06 radeonsi: don't map big
VRAM buffers for the first upload directly
4b0dc098b2561c07c59f7dab2813640a25789bf1 2017-11-06 gallium/u_threaded: don't
map big VRAM buffers for the first upload directly
a5d3999c31e2460f690b561b41170bb7bc24fc65 2017-11-06 gallium/u_threaded: clean
up tc_improve_map_buffer_flags and prevent reentry
One commit before them this flickering doesn't occur:
OpenGL renderer string: AMD Radeon (TM) RX 480 Graphics (POLARIS10 / DRM 3.18.0
/ 4.13.0-1-amd64, LLVM 5.0.0)
OpenGL core profile version string: 4.5 (Core Profile) Mesa 17.4.0-devel
(git-60a9705e00)
And with them, it does:
OpenGL renderer string: AMD Radeon (TM) RX 480 Graphics (POLARIS10 / DRM 3.18.0
/ 4.13.0-1-amd64, LLVM 5.0.0)
OpenGL core profile version string: 4.5 (Core Profile) Mesa 17.4.0-devel
(git-adab7f16ff)
I'm running The Witcher3 with mesa_glthread and csmt enabled (both). You can
use latest Wine staging to test it.</pre>
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