Keith Packard <[email protected]> writes:

> When Async mode was added, regular old Sync mode for copies was broken
> -- it ended up getting executed immediately, causing tearing.
>
>  [PATCH 1/3] present: Handle PresentOptionAsync for copy mode
>
> Patch 04e138846e left flips on the per-window queue after they'd been
> sent to the hardware. This let them match new requests for the same
> MSC value and caused the pending flip pixmap to be marked as idle and
> re-used by applications, generating quite the damage on the
> screen. Only visible with vblank_mode=0 though.
>
>  [PATCH 2/3] present: Don't abandon presents which are already queued
>
> Present is supposed to tell applications when their request never made
> it to the screen because it was replaced with a more recent request
> for the same MSC, but the code wasn't ever actually sending it.
>
>  [PATCH 3/3] present: Set complete notify mode to Skip as needed

Sorry to have pushed these without review, but they were all 'minor' and
Present was pretty broken without them. I figured the potential
regressions from this were non-existent as Present is a new feature.

   a68df14..2eb9915  master -> master

-- 
[email protected]

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