<html>
<head>
<base href="https://bugs.freedesktop.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Vulkan MSAA is broken on SI"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105506">105506</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Vulkan MSAA is broken on SI
</td>
</tr>
<tr>
<th>Product</th>
<td>Mesa
</td>
</tr>
<tr>
<th>Version</th>
<td>git
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Component</th>
<td>Drivers/Vulkan/radeon
</td>
</tr>
<tr>
<th>Assignee</th>
<td>mesa-dev@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>turo@alternativegames.net
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>mesa-dev@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=138105" name="attach_138105" title="Screenshot">attachment 138105</a> <a href="attachment.cgi?id=138105&action=edit" title="Screenshot">[details]</a></span>
Screenshot
MSAA is broken on Vulkan with SI card (Pitcairn) causing graphical artefacts.
All MSAA modes are affected. OpenGL works. The same code works on Windows with
AMD's driver and on Nvidia GPU with their proprietary drivers. No warnings from
Vulkan validation layers. Broken versions are 17.3.6 (Debian package),
18.0.0rc4 (likewise) and master fcf267ba087dd00c48ceaf9277424dac079f9319
(self-built, with LLVM 6.0). Kernel is 4.14.17 from Debian testing.
The test program is here:
<a href="https://github.com/turol/smaaDemo">https://github.com/turol/smaaDemo</a>
Use command line parameters "-m msaa -q 8" to get directly to the broken
effect.
#103999 is possibly related but I'm using RGBA8srgb instead of RG32F.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the QA Contact for the bug.</li>
<li>You are the assignee for the bug.</li>
</ul>
</body>
</html>