[mythtv-users] OT: Need a new HDTV

Yeechang Lee ylee at pobox.com
Mon Jan 15 20:53:18 UTC 2007

Brad DerManouelian <myth at dermanouelian.com> says:
> I've got a Westinhouse 1080p as well. I can't tell the difference
> between 1080i content on the 1080p port and the 1080i port.

We may be talking apples and oranges. Try this:

* Set deinterlacing to Bob. Turn OpenGL vertical sync off in
  mythfrontend. Turn XVideo texture sync to vblank on in nvidia-settings.
* Connect the computer to the 1080p port. (My Westinghouse 47" only
  has 1080p ports, but this also worked on my former 37" using said
  1080p DVI port.)
* Restart X and mythfrontend with both 1080p and 1080i modeline. I use

        ModeLine     "1920x1080-59.94p" 148.4 1920 1960 2016 2200 1080
        1082 1088 1125

        ModeLine     "1920x1080-59.94i" 74.2 1920 1960 2016 2200 1080
        1082 1088 1125 interlace

* Look for scenes in 1080i content where the camera pans. My personal
  benchmark is "HD Traveler: New York City," a Discovery HD
  documentary, starting about two minutes in. Start right after the
  guy passing pastrami sandwiches over a counter, then pay attention
  to the living room-in-apartment, skyline-behind-Central Park, and
  Times Square scenes.

1080i = Quite acceptable, but . . .
1080p = Buttery-smooth fluid motion. What I've previously described as
"*better* than anything a settop box can produce." This makes sense;
after all, Bob doubles the framerate.

Yeechang Lee <ylee at pobox.com> | +1 650 776 7763 | San Francisco CA US

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