On Tuesday 15 February 2005 04:26 pm, Cory Papenfuss wrote: > On Tue, 15 Feb 2005, Isaac Richards wrote: > > On Tuesday 15 February 2005 03:50 pm, Cory Papenfuss wrote: > >> It's weird though... one would think that with a lack of vsync, > >> there'd be a "tearing vertical roll." There isn't in my setup... the > >> tearpoint is always at the same location. Quite odd. > > > > Are you running the video output on a 2nd head? XvPutImage should be > > syncing it automatically (so no tearing), but this doesn't work in a > > multi-headed situation. If using an nvidia card, there's also a setting > > in the nvidia-settings app to enable/disable this, but it's enabled by > > default. > > No... it's always been on a singlehead. Now that I think about > it, however, I'm not sure if I've tried it since I switched to an Nvidia > card with proprietary driver. I used to use a r128 Gatos. I'll check for > sure tonight and make sure it's still broken. It should "Just Work" if > the SGI_vsync whatever extension is there, though, eh?
Well, with Xv and a nvidia card and singlehead, there shouldn't be any tearing whatsoever on video playback, unless you disable that through the nvidia-settings app. That's built in to the driver. Tearing, though is separate from the vsync support code in myth, which uses the vsync info it gets for more accurate delivery timing. You do have to enable the opengl sync method in settings.pro for that vsync method to work, though. Isaac _______________________________________________ mythtv-users mailing list [email protected] http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
