> > I finally got it working "right" (?) at the full screen overlay mode > > by specifying "fullscreen = 640x480" and adding "640x480" mode > > for XFree86 config file. > > This fixed the problem because the horizontal capture resolution is now > fixed at 640 pixels. The problem I was getting (and I'm assuming it's the > same thing you're seeing) occurs when the tv card is asked to produce a > picture that is greater than 768 pixels. If you experiment with resizing > the window in non-fullscreen mode, you should be able to verify this. Bear > in mind that the height of the window does also have an effect (make sure > it's greater than about 300 pixels). I'm not sure my experience match here. in overlay mode, I don't see dissortions no matter what size I set the non-full scree window, although it will refuse to scale beyond cetain size what seems to be around 700x500, and to get bigger image I would have to swtich to full-screen. in grab display mode I get dissortions even at 640x480, and the bigger I make the screen, the bigger the dissortion gets..although it seems to go away if I switch to full screen mode, or make window as small as 300x200. > > However, I have impression that this image is interlacted and that only > > every other frame is being displayed. or so it seems to me, am I wrong > > here? > > I'd imagine that you'll be getting some interlacing (because the tv card > is being asked to show more lines [400] than there are in a single field > [<300]). Every *frame* should be showing up, however. the issue is that if I have, for example, an diagonal line on screen, it wil appear jagged, and not smooth, perhaps kind of as if every other line was missing. I seem to recall someone posting on this list some url to a program which would fuss two interlacted frames into one, and the screenshots on that web page seemed about to correspond to what I see here. Although I can't find that url anymore :(
