On Tue, 20 Jan 2009 18:19:49 +0200 "Ville Aakko" <ville.aakko@xxxxxxxxx> wrote: > 1) You need to enable sync on vblanck. [Snip] > The first is not possible on all drivers (i.e. fglrx). Absolutely not possible? I know OpenGL, DRI and NVidia drivers all have APIs for waiting for vblank and ISTR seeing a xine option for vblank sync with Xv. Do none of these work with fglrx? Nvidia's settings tool has options to disable vblank sync for OpenGL and video, but I don't know whether by setting it off it disables syncing altogether or by setting it on it forces flip operations to automatically wait for vblank. Another problem is that in interlaced modes on standard graphics cards you get a vblank interrupt for each field with no way of distinguishing between top or bottom fields; getting them the wrong way round is really messy! Certain Matrox cards let applications distinguish between top and bottom fields, but it's only (officially) supported on the TV-out (SDTV) on the second head using DirectFB. -- TH * http://www.realh.co.uk _______________________________________________ vdr mailing list vdr@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
