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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 - vkQuake flickering geometry under Intel"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109630">109630</a>
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<th>Summary</th>
<td>vkQuake flickering geometry under Intel
</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)
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<th>OS</th>
<td>Linux (All)
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
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<th>Component</th>
<td>Drivers/Vulkan/intel
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<th>Assignee</th>
<td>intel-3d-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>rgarcia@igalia.com
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<th>QA Contact</th>
<td>intel-3d-bugs@lists.freedesktop.org
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<th>CC</th>
<td>jason@jlekstrand.net
</td>
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<pre>Hello,
I'm running vkQuake from git master (89f0979b1c86b7923b5ddeebde06791018fd3eea)
and using mesa master (227df98fa63ae5cd0509399c030d74dc6f524226) under Fedora
29, with kernel 4.20.7-200.fc29.x86_64.
Hardware is the integrated graphics card on an Intel(R) Core(TM) i7-8550U CPU @
1.80GHz, which is an Intel(R) UHD Graphics 620 (Kabylake GT2).
When running the game normally, I see flickering geometry almost constantly,
like pieces of the level missing. Here's an example of a wrong frame:
<a href="https://people.igalia.com/rgarcia/vkquake0039.png">https://people.igalia.com/rgarcia/vkquake0039.png</a>
Compared to a correct frame:
<a href="https://people.igalia.com/rgarcia/vkquake0040.png">https://people.igalia.com/rgarcia/vkquake0040.png</a>
It doesn't happen running vkQuake on a different computer with Fedora 29 and
the proprietary NVIDIA drivers.
I've recorded a few seconds with vktrace in which the problem is visible and
reproducible with vkreplay in my system. Note the recording may need to be
reproduced under X11 and not Wayland.
<a href="http://people.igalia.com/rgarcia/vkquake-flicker-3.vktrace.xz">http://people.igalia.com/rgarcia/vkquake-flicker-3.vktrace.xz</a>
Instructions to replay:
xz -d vkquake-flicker-3.vktrace.xz
vkreplay -o vkquake-flicker-3.vktrace
vkQuake can be downloaded here:
<a href="https://github.com/Novum/vkQuake">https://github.com/Novum/vkQuake</a>
And I was using the shareware version of the game data when reproducing the
bug.
Please do not hesistate to ask for more information if you need it.</pre>
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