[mythtv-users] Just let my TV de-interlace

Yeechang Lee ylee at pobox.com
Mon Oct 27 19:41:44 UTC 2008


jansenj <jansenj+myth at gmail.com> says:
> Are there modlines for an nvidia card to do 1080i over DVI?

Yes. Your current 60Hz modeline looks something like this:

ModeLine "1920x1080-mine" 148.352 1920 1960 2016 2200
			  1080 1082 1088 1125

(It's actually 59.94Hz.)

A 30Hz (or, in my case, 29.97Hz) modeline looks like this:

ModeLine "1920x1080-minei" 74.176 1920 1960 2016 2200
			   1080 1082 1088 1125 interlace

> I'm pretty sure it would be possible over component, but I'd rather
> stick with DVI for now.

Stick with DVI. *Not* because DVI video is necessarily superior to
component (it isn't) but because most TVs will not apply overscan--a
bad thing when one wants true 1:1 pixel matching--on DVI video but
will for component.

> This way I could just do away with any cpu wasted on de-interlacing,
> or would there be a major downside to this that I'm not seeing?

Most TVs' deinterlacers are going to be inferior to MythTV's own
methods; see
<URL:http://www.gossamer-threads.com/lists/mythtv/users/349711#349711>.

-- 
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