[mythtv-users] native resolution vs 1080i for HDTV and SD on 1280x768 lcd?

Michael T. Dean mtdean at thirdcontact.com
Thu Nov 17 13:25:33 EST 2005


Steve Adeff wrote:

>On Thursday 17 November 2005 12:30, Michael T. Dean wrote:
>  
>
>>Steve Adeff wrote:
>>    
>>
>>>Yes, always when possible. ie. my HDTV converts everything to 1080i but I
>>>can't find a DVI 1080i modeline that will work with my geforce so I'm
>>>forced to output at 720p, I might eventually get a newer geforce with an
>>>HDTV output chip and use that, I'll prbly end up buying a new TV before
>>>that happens though.
>>>      
>>>
>>CRT?  If not, converting everything to 1080i doesn't make any sense at
>>all.  If it's a 720p TV, then converting a 720p signal to 1080i (i.e.
>>upscaling and interlacing it) and then downscaling and deinterlacing for
>>display is just plain wrong.  If it's a 1080p TV, it should upscale 720p
>>content to 1080p and deinterlace 1080i content to 1080p.
>>    
>>
>My CRT
>
Ahh.  Yes.  That's the only way that 1080i makes sense.  I'm glad you
didn't get stuck with a broken HDTV.  :)

> is 1080i native but there is no working modeline that will drive it at 
>1080i(confirmed by many people on the internet looking for the same thing). 
>It will accept 720p via a modeline though, so i use that, granted the HDTV is 
>internally scaling it to 1080i...
>
>So I could 
>A) buy a video card with an HDTV output chip and use that
>B) buy a new HDTV. I'm looking to get a projector anyway and since the HDTV is 
>one of those cheap Sanyo's Walmart had on sale a while back I'm not attached 
>to it in any way.
>
Cool.  The 720p projectors seem to be reasonably priced.  However, the
1080p's should start becoming more and more affordable...  ;)

>>OK.  Maybe a plasma--I don't know anything about them except that their
>>resolutions are usually neither 720p or 1080p and don't know anything
>>about refresh...
>>    
>>
>and they usually suck. no offense to anyone that might have them, but I've 
>never read anything good about them in the Home Theatre mag that would make 
>me want one over an LCD or DLP rear projection TV, and their more expensive.
>  
>
I completely agree.  That's most of the reason that I know nothing about
them--because from first glance I decided I didn't want one, so I never
did any research.

Mike



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