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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - xf86-video-amdgpu - commit 0d60233d introduced stuttering with mouse cursor operations"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109332">109332</a>
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<th>Summary</th>
<td>xf86-video-amdgpu - commit 0d60233d introduced stuttering with mouse cursor operations
</td>
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<th>Product</th>
<td>xorg
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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
</td>
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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>Driver/AMDgpu
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<th>Assignee</th>
<td>xorg-driver-ati@lists.x.org
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<th>Reporter</th>
<td>tempel.julian@gmail.com
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<th>QA Contact</th>
<td>xorg-team@lists.x.org
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<p>
<div>
<pre>Originally reported inside this ticket:
<a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - amdgpu.dc=1 shows performance issues with Xorg compositors when moving windows"
href="show_bug.cgi?id=106175">https://bugs.freedesktop.org/show_bug.cgi?id=106175</a>#add_comment
---
There is stuttering caused by certain mouse cursor operations. To reproduce,
e.g. do this:
-disable Plasma compositing with Ctr + Alt + F12 (or in the compositor settings
and log out and in again)
-get the latest Compton release by yshui: <a href="https://github.com/yshui/compton">https://github.com/yshui/compton</a>
-start Compton (Mesa still enables vsync automatically in the latest release,
this has changed with compton-git)
-open a Dolphin window and www.vsynctester.com in webbrowser
-now click Dolphin's title bar, move it a bit, release it and repeat the
procedure several times in a row
-there should be stutter happening in the vsynctester.com browser window
-now quit Compton and start it with "vblank_mode=0 compton" to enable GLX
compositing without vsync
-now the repeatedly moving Dolphin's window procedure described above shouldn't
lead to any stutter
-when booting with amdgpu.dc=0, there also shouldn't be any stutter when vsync
is kept enabled
This bug was introduced with this commit:
<a href="https://gitlab.freedesktop.org/xorg/driver/xf86-video-amdgpu/commit/0d60233d26ec70d4e1faa343b438e33829c6d5e4">https://gitlab.freedesktop.org/xorg/driver/xf86-video-amdgpu/commit/0d60233d26ec70d4e1faa343b438e33829c6d5e4</a></pre>
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</p>
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