[Mesa-dev] [Bug 98833] [REGRESSION, bisected] Wayland revert commit breaks fullscreen frame updates

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98833

--- Comment #9 from Eero Tamminen <eero.t.tamminen at intel.com> ---
Created attachment 128240
  --> https://bugs.freedesktop.org/attachment.cgi?id=128240&action=edit
Patch to add frame swap delay option to weston-simple-egl

(In reply to Pekka Paalanen from comment #8)
> Maybe it can already reproduce the problem when you run it fullscreen,
> opaque, and swapinterval=0?

That wasn't enough, nor was making exactly the same (E)GL calls.

What was needed, was just using slower frame update rate.  The problem is quite
visible when the test goes 60-100 FPS.

Attached patch adds delay option to weston-simple-egl.  To see the problem, try
with something like:
  ./weston-simple-egl -b -f -o -d 15500

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