[mythtv-users] NTSC ModeLine

[Doug Larrick]

Shaun Jackman wrote:
> I'm trying to find the best 640x480 interlaced NTSC ModeLine. This one
> looks good to me:
> 	ModeLine "ATSC-480-59.94i" 11.958  640 664 736 760  480 484 492 525 Interlace
> However, running X gives this error:
> (II) MGA(1): Not using mode "ATSC-480-59.94i" (bad mode
> clock/interlace/doublescan)
> 
> What NTSC ModeLine works for you?

I use the following for my HDTV:
ModeLine "480i" 13.5    720 736 800 856 480 484 492 525 interlace
# Pseudo-480i:
ModeLine "240p" 13.494    720 736 800 856 240 242 246 263

I would guess that 11.958 is below the minimum dotclock for your card.

-Doug
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