Keith Packard wrote: > On Wed, 2008-12-10 at 23:14 -0500, Nick Nobody wrote: >> Hello, >> >> I'm using Ubuntu 8.10 with a GM945 (at 1920x1080) for my media center PC. >> The problem I'm running into is a bunch of horizontal tearing on higher >> resolution videos (720p or greater). From what I can tell it's not a CPU >> limitation but rather something related to the graphics card... >> >> Are there any options that I can enable in my xorg.conf to help >> reduce/eliminate this tearing? Or is this simply a hardware limitation? >> Can XvMC somehow help me here? > > There aren't any options at this point, but I'm wondering -- is this > full-screen? If we made full-screen Xv operations block until vblank > (which would lock up the X server), would that be an acceptable option? > > It's actually very easy to do, just stick a 'wait for vblank' command > into the ring right before the 'copy the new picture' command in the Xv > extension code. It's just annoying when you're watching a tiny movie and > your whole session stops responding.
That would be just a temporary solution with too many problems (since I assume a real solution will be in DRI2?) The OpenGL method with VSync works quite well. _______________________________________________ xorg mailing list xorg@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/xorg