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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 - Tonga DC vblank_mode=0 not working as expected fullscreen"
href="https://bugs.freedesktop.org/show_bug.cgi?id=103486">103486</a>
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<th>Summary</th>
<td>Tonga DC vblank_mode=0 not working as expected fullscreen
</td>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>DRI 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
</td>
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<th>Component</th>
<td>DRM/AMDgpu
</td>
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
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<th>Reporter</th>
<td>adf.lists@gmail.com
</td>
</tr></table>
<p>
<div>
<pre>R9285, I notice that on both drm-next-4.15-dc and amd-staging-drm-next, when
using DC, vblank_mode=0 works windowed but not properly full screen.
Tried forcing TearFree from auto to off no difference.
There is no tearing where it would be expected - but it's not like it's just
being ignored, a bench mark test will cap fps at 2X refresh rate rather than
1X.
Maybe this is expected?
It doesn't happen with a months older DC kernel I have and looking at DC
benches on Phoronix I don't see any fps cap.</pre>
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