x1250 horizontal tearing problems

[Alex Rades]

On Wed, Apr 30, 2008 at 8:39 PM, Alex Deucher <alexdeucher at gmail.com> wrote:

>       * Only wait if the window isn't redirected (backing pixmap is the
> >         screen pixmap)
>
> yeah, as you said, any rendering to the front buffer should wait for
> vblank.  I may play around with it a bit if I have time, but
> unfortunately, I seem to be unable to notice tearing generally.  Do
> you have any good tips or content that would make it easier to notice?
>

Yes, I generally use this free calibration DVD:
http://merifon.altervista.org/TestDVD.html (200 Mb, direct link:
http://www.isaneri.it/bg/TestDVD1_08.zip)

If you extract it and play VTS_04_1.VOB, at the end you find a fast
horizontal moving patter, which evidently shows an horizontal tearing.
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