[Bug 84252] [SNA/HSW] DRI3 rendering gets stuck waiting for present idle notify event

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84252

--- Comment #22 from Chris Wilson <chris at chris-wilson.co.uk> ---
Flips proceeds fine up until the final unflip is completed (event 1487). After
that, present is copying invisible windows (until event 1565, the last event),
but as far as I can see each copy is still followed by an idle notification.

The unflip is for when the window becomes clipped, and present switches back to
the original pixmap and keeps on doing the clipped copy updates.

As far as the trace goes, there is not a missing idle event.

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