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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Launching LibreOffice with Panfrost and modesetting DDX cause rendering slowdown"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111611">111611</a>
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<th>Summary</th>
<td>Launching LibreOffice with Panfrost and modesetting DDX cause rendering slowdown
</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>ARM
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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>major
</td>
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<th>Priority</th>
<td>not set
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<th>Component</th>
<td>Drivers/Gallium/Panfrost
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<th>Assignee</th>
<td>mesa-dev@lists.freedesktop.org
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<th>Reporter</th>
<td>russianneuromancer@ya.ru
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<pre>Hello!
I found that launching LibreOffice Writer with default modesetting DDX and
Panfrost driver cause Xorg process to take 100% of one SoC core and slowdown
rendering significantly. Mutter render one frame per 5-15 seconds, so it's
unusable until I close LibreOffice Writer (sometimes I had to do it remotely as
doing so locally is painfully slow).
Software:
Ubuntu Eoan with Armbian 5.3.0-rc4-rk3399 kernel, which was built from
5.3.0-rc4-1118-ayufan tag of
<a href="https://github.com/ayufan-rock64/linux-mainline-kernel">https://github.com/ayufan-rock64/linux-mainline-kernel</a> repository.
Mesa 19.3.0 git (build from commit f8887909c6683986990474b61afd6d4335a69e41)
with enabled Panfrost, from Oibaf PPA.
Gnome Shell 3.34 Beta.
glxinfo -B report "direct rendering: Yes" and "OpenGL vendor/renderer string:
panfrost"
es2_info report GL_RENDERER: panfrost
Both of glxgears and es2gears_x11 run at ~60 fps.
Hardware:
NanoPC-T4 with active cooling.
Please let me know what information I can provide to help resolve this.</pre>
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