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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - mesa-18.1: regression with TFP on intel with modesettings and glamor acceleration"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107117#c24">Comment # 24</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - mesa-18.1: regression with TFP on intel with modesettings and glamor acceleration"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107117">bug 107117</a>
from <span class="vcard"><a class="email" href="mailto:fourdan@xfce.org" title="Olivier Fourdan <fourdan@xfce.org>"> <span class="fn">Olivier Fourdan</span></a>
</span></b>
<pre>Quick follow up, investigating <a class="bz_bug_link
bz_status_NEW "
title="NEW - [glamor] Texture from pixmap broken with glamor on xserver 1.20"
href="show_bug.cgi?id=107287">bug 107287</a> (affecting Xwayland which also uses
glamor), it became apparent that the issue was more or less related to the
introduction of multiple planes and format modifier support in both Mesa and
the Xserver.
So I reran a new bisection (now avoiding the assert) and this time was able to
find the first bad commit:
069fdd5f9facbd72fb6a289696c7b74e3237e70f is the first bad commit
commit 069fdd5f9facbd72fb6a289696c7b74e3237e70f
Author: Louis-Francis Ratté-Boulianne <<a href="mailto:lfrb@collabora.com">lfrb@collabora.com</a>>
Date: Fri Jul 7 02:54:26 2017 -0400
egl/x11: Support DRI3 v1.1
Add support for DRI3 v1.1, which allows pixmaps to be backed by
multi-planar buffers, or those with format modifiers. This is both
for allocating render buffers, as well as EGLImage imports from a
native pixmap (EGL_NATIVE_PIXMAP_KHR).
Signed-off-by: Louis-Francis Ratté-Boulianne <<a href="mailto:lfrb@collabora.com">lfrb@collabora.com</a>>
Reviewed-by: Eric Engestrom <<a href="mailto:eric.engestrom@imgtec.com">eric.engestrom@imgtec.com</a>>
Reviewed-by: Emil Velikov <<a href="mailto:emil.velikov@collabora.com">emil.velikov@collabora.com</a>>
Reviewed-by: Daniel Stone <<a href="mailto:daniels@collabora.com">daniels@collabora.com</a>>
:040000 040000 24a88d838ccccdcd3aadb977d50c3fa59b9373bc
938aabed7e3e5a41fd0e3167a6afdceac69a37fd M src
This explains why this requires both Mesa >= 18.1 and xserver >= 1.20 (as
format modifiers support landed on both versions) and also why this affects
only intel (as no other driver implement format modifiers yet, afaik).</pre>
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