[mythtv-users] Picture misalignment at top of screen with VDPAU

[Mark Kendall]

2009/12/22 Mitko Haralanov <voidtrance at comcast.net>:
> I get a line at the top of the screen, about an inch down from the very
> top of the screen, that looks like tearing or like the picture is
> misaligned. It only happens when there is motion on the screen. When
> the picture is steady (for example, if the background is steady), the
> problem does not appear.

This is definitely tearing.

> When I switch back to 'Normal' profile, everything is fine. Everything
> that seems relevant to this on the mailing list does not seem to help.
> I've tried enabling Sync to VBlank in nvidia-settings for both OpenGL
> and XVideo, I've tried using different deinterlacers in the VDPAU High
> Quality profile.

OpenGL and XVideo sync to vblank will do nothing for VDPAU playback.
The most likely problem is that you haven't disabled the composite
extension in your xorg.conf  - otherwise try posting the output of
mythfrontend -v playback.

regards

Mark