[mythtv-users] ATI Interlacing questions

Dan McCarthy mccadan at gmail.com
Wed Jan 18 22:34:16 UTC 2006


Hi,

I have a couple of questions about interlaced output with an ATI card.
I am using an ATI 9200 with TV out with the ATI fglrx binary driver
and svn mythtv. I capture from a dvb-t card.
I am getting interlacing artifacts on the displayed video. These are
chunky lines to the left or right of the image during motion.

I understand that the SDTV DVB signal is interlaced. Does this mean
that I would need to use software deinterlace when using the TV out,
or is this handled automatically by the card? Is the TV out just some
kind of mirror output of what is shown on a monitor or is it treated
completely differently by the card?

Also, I have the screen resolution set to 800x600. Should I be setting
this to 576x720 for SDTV PAL with a modeline (if possible) to avoid
any issues with image scaling before it goes out the TV out?

Thanks,
Dan


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