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<body><span class="vcard"><a class="email" href="mailto:matthew.d.roper@intel.com" title="Matt Roper <matthew.d.roper@intel.com>"> <span class="fn">Matt Roper</span></a>
</span> changed
<a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - Screen flickering"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93892">bug 93892</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Assignee</td>
<td>intel-gfx-bugs@lists.freedesktop.org
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<td>matthew.d.roper@intel.com
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<td style="text-align:right;">Status</td>
<td>NEW
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<td>ASSIGNED
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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - Screen flickering"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93892#c8">Comment # 8</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - Screen flickering"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93892">bug 93892</a>
from <span class="vcard"><a class="email" href="mailto:matthew.d.roper@intel.com" title="Matt Roper <matthew.d.roper@intel.com>"> <span class="fn">Matt Roper</span></a>
</span></b>
<pre>(In reply to Manfred Kitzbichler from <a href="show_bug.cgi?id=93892#c6">comment #6</a>)
<span class="quote">> I believe it was this commit that introduced the flicker regression:
>
> <a href="https://github.com/torvalds/linux/commit/">https://github.com/torvalds/linux/commit/</a>
> 43d59eda1f69631c267e06ab6b94ed3c14f1f6d1</span >
It looks like when I dropped the level of indirection I also accidentally
dropped a workaround of "pretend the cursor plane is always on" that was
papering over the fact that our driver doesn't have proper two-stage watermark
programming yet.
Technically the true root cause of this flickering was fixed when we merged the
two-step watermarks at the end of that patch series. However that final patch
wound up causing a different regression for our CI system, so we reverted the
final patch which brought this regression back instead. :-(
For the short term, just restoring the original workaround of pretending the
cursor is always on, even when it isn't, should avoid the user-visible
flickering while also keeping our CI system happy; I'll supply a patch for that
shortly.</pre>
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