[Bug 84944] tearing on radeonsi vdpau deinterlacer

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84944

--- Comment #24 from Christian König <deathsimple at vodafone.de> ---
(In reply to Andy Furniss from comment #23)
> My normal use case, however, is to have 2 screens - TV below monitor +
> different refresh rates. Like this I don't get flips, but I also don't have
> any tearing issues with deint. I always set cpus to perf - so I guess that
> my system is fast enough to handle copy.

For your case it for some reason don't page flip because of the two screens
setup. And it then indeed most likely tears because the deint shader needs to
much time.

But that's a completely different issue than what warpme has here. In this case
here it don't page flip because MythTV is doing something odd.

My best guess is that MythTV is trying to crop the first and last line of the
video to avoid flickering with BOB deinterlacing. But instead of providing a
proper video_source_rect while calling VdpVideoMixerRender they resize their X
window to be two lines less in height which is a really really bad idea.

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