[mythtv-users] Help running FX5200 + DVI to 1280x720 projector
Scott Alfter
mythtv at salfter.dyndns.org
Fri Apr 15 21:06:37 UTC 2005
Steve Christall wrote:
> Currently I have a combo backend / front end running myth, and currently
> outputting at 800x600 over analogue VGA (TNT2!) to my 1280x720 DVI
> capable projector. This works pretty well
>
> I want to switch to DVI, and run my projector at its native resolution.
> My box only has PCI slots, and I have found a PCI FX5200 with DVI-I
> interface.
>
> 1 / Is this possible. ie is there a modeline to run the FX5200 at
> 1280x720 over DVI? Do you still use modelines for DVI output, I guess
> there isn't a refresh rate? If so could I please have it :o)
It is; you just need to use one of the modeline calculators that are available.
I use an FX5200 to drive an LCD at 1280x768. I had another LCD before that
for a few days that allegedly was 1280x720, but I took it back because there
was no apparent way to coax it into actually running at its native resolution.
I still have the modeline for it; you might try it as a starting point:
Modeline "1280x720 at 60" 73.78 1280 1350 1390 1650 720 725 730 750
> 2 / Would #1 above be called progressive scan?
Yes.
> 3 / How would the deinterlacing work (I capture from a DVB card and
> PVR350). Do I need to deinterlace?! I think at the moment my projector
> is doing this?
You would use MythTV's deinterlacing options (which unfortunately don't include
inverse 3:2 pulldown for the many shows that would benefit from it, but
they'll still clean up a fair bit of interlace noise).
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