[Bug 32789] VSync loss after rotation to portrait mode

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=32789

--- Comment #6 from Michel Dänzer <michel at daenzer.net> 2011-01-04 09:47:24 PST ---
(In reply to comment #5)
> FWIW, the vline stuff in the driver only works if the pixmap is the screen
> pixmap which may not be the case when rotation is active.

A rotated scanout pixmap is definitely not the screen pixmap... Thanks for
pointing this out!

So there might be a relatively simple fix after all: Always use vline waits for
rotated scanout pixmaps.

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