[Mesa-dev] [Bug 81139] Rendering sometimes halts in waiting for back buffers with dri3 & xwayland

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=81139

--- Comment #9 from Axel Davy <vebveb at hotmail.fr> ---
For Xwayland, Present uses the Present fallback implementation.

If never present_fake_queue_vblank is called with a msc too low (already
passed), then perhaps it's going to wait forever. My guess is that for an
unknown reason, this function is called with a past msc.

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