This defines an interlaced 768x576 mode with 14.76 MHz pixelclock at 50Hz. As far as i know, exactly what PAL is defined at. But: If i use this mode i will get an skewed image. It's displayed two times (at lower and upper half of tv).I have noticed that a large number of video drivers have bugs when it comes to displaying interlaced output. I once tried to use an ATI card to generate interlaced output on the framebuffer (so I could see the bootup screen). I ran into limitations of the framebuffer driver on that card (although I can't remember specifically what it was). I'd bet that's what you're running into... it seems like it should go.
One thing you *might* want to try is different combinations of low|high for hsync/vsync/csync. It sounds like the framebuffer memory is being written correctly, but the field-sync isn't being generated.
Yes i know. But what i've in mind is to enable flicker filtering for the MythTV GUI and disable it for video display.I'm not sure exactly what you're trying to do with multiple heads, etc. It sounds overly complicated.
I think the fonts do not make so big problems like the single lined borders of the mythvideo or mythmusic gui. A simple workaround is to use very big fonts. So there aren't so many single horizontal lines. Maybe there is a workaround for the GUI too. Any suggestions?100dpi fonts. I think MythTV uses the newer vector fonts (TrueType), but I'm not sure. I don't know if those have a notion of optimal display on interlaced screens.
I don't understand exactly why you're using the framebuffer at all. Unless you *really* want to see the console during bootup, can you just wait for X to fire up with the correct timings? You will have unaccelerated video playing if done via a framebuffer, whereas with X (no framebuffer) you have the potential of using Xv or XvMC.
-Cory
************************************************************************* * Cory Papenfuss * * Electrical Engineering candidate Ph.D. graduate student * * Virginia Polytechnic Institute and State University * *************************************************************************
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