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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - radv: Dragon Quest XI (DXVK) has a graphical glitch (regression, bisected)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=110349">110349</a>
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<th>Summary</th>
<td>radv: Dragon Quest XI (DXVK) has a graphical glitch (regression, bisected)
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<th>Product</th>
<td>Mesa
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<th>Version</th>
<td>git
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<th>Hardware</th>
<td>x86-64 (AMD64)
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<th>OS</th>
<td>Linux (All)
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>normal
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<th>Priority</th>
<td>medium
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<th>Component</th>
<td>Drivers/Vulkan/radeon
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<th>Assignee</th>
<td>mesa-dev@lists.freedesktop.org
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<th>Reporter</th>
<td>asheldon55@gmail.com
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<th>QA Contact</th>
<td>mesa-dev@lists.freedesktop.org
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<pre>When running Dragon Quest XI with DXVK, a graphical glitch can be seen. The
glitch tends to flicker in and out from a distance, but once you get closer, it
remains static. I've only tested it at one location, so I can't say if it
appears elsewhere. Here's a screenshot: <a href="https://imgur.com/a/v7RnxE9">https://imgur.com/a/v7RnxE9</a>
The first bad commit is a66b186bebf9b63897199b9b6e26d40977417f74:
Author: Samuel Pitoiset <<a href="mailto:samuel.pitoiset@gmail.com">samuel.pitoiset@gmail.com</a>>
Date: Tue Feb 26 13:42:28 2019 +0100
radv: use typed buffer loads for vertex input fetches
This drastically reduces the number of SGPRs because the driver
now uses descriptors per vertex binding, instead of per vertex
attribute format.
29077 shaders in 15096 tests
Totals:
SGPRS: 1354285 -> 1282109 (-5.33 %)
VGPRS: 909896 -> 908800 (-0.12 %)
Spilled SGPRs: 24840 -> 24811 (-0.12 %)
Code Size: 49221144 -> 48986628 (-0.48 %) bytes
Max Waves: 243930 -> 244229 (0.12 %)
Totals from affected shaders:
SGPRS: 390648 -> 318472 (-18.48 %)
VGPRS: 288432 -> 287336 (-0.38 %)
Spilled SGPRs: 94 -> 65 (-30.85 %)
Code Size: 11548412 -> 11313896 (-2.03 %) bytes
Max Waves: 86460 -> 86759 (0.35 %)
This gives a really tiny boost.
Signed-off-by: Samuel Pitoiset <<a href="mailto:samuel.pitoiset@gmail.com">samuel.pitoiset@gmail.com</a>>
Reviewed-by: Bas Nieuwenhuizen <<a href="mailto:bas@basnieuwenhuizen.nl">bas@basnieuwenhuizen.nl</a>>
Reverting the commit fixes the glitch. The glitch also doesn't exist when using
AMDVLK.</pre>
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