[mythtv-users] Any hope for 1080i content at 1080i with nVidia?

Doug Larrick doug at parkercat.org
Sun Jul 29 19:48:58 UTC 2007


Brian Foddy wrote:
> On Sunday 29 July 2007, Tom Dexter wrote:
>> Being one of the unfortunate MythTV users with a RPCRT (1080i) display,
>> I've been around the block with the nVidia interlacing issues as discussed
>> here:
>>
>> http://www.gossamer-threads.com/lists/mythtv/users/270200
>>
>> Has anyone seen any sign indicating that some day nVidia might address
>> this? There have been several threads on the nVidia Linux forum over the
>> years, and I've yet to see them acknowledge that there's even a problem.
>>
>> I've just ended up settling for enabling kernel deinterlacing and accepting
>> it the way it is, but it really brings me down.  1080i content on my TV
>> should be breath-taking, but instead I have to settle for it being inferior
>> to 720p...not to mention deinterlacing doubles the CPU usage.
>>
>> Tom
>>
> 
> Not sure I'd classify  myself as an "unfortunate" owner of a RPCRT 1080i
> TV, but rather as being well seasoned with HDTV as both myself and parents
> have similar 51" CRT RP TVs for many years now.  
> 
> But that aside, I find my picture is much better
> if I set the TVs to 540p.  The display artifacts are much reduced 
> (jagged edges), the TV actually thinks its a 1080i signal, and I can't 
> really tell the visual  difference to live 1080i HDTV.  At least good enough
> until I can afford a 1080p TV, then I'll really think the rest of the world is
> "unfortunate" :).

Seconded.  You really want a 1920x540p mode so you're not discarding
horizontal resolution:

http://www.mythtv.org/pipermail/mythtv-users/2004-July/049482.html

That, coupled with bob deinterlacing, should give you as good a 1080i
picture as you're able to get.

-Doug

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