[mythtv-users] HD1080i or HD480i? 6600 Component out

[Alex Brekken]

So how would a person setup their xorg.conf file so that it will ouput
either 1080i OR 720p depending upon the source material?  My TV will do
1080i and 720p, so I wouldn't necessarily want to force it one way or the
other.


On 2/6/06, Steve Skarda <steveskarda at gmail.com> wrote:
>
>
> On 2/2/06, Steve Skarda < steveskarda at gmail.com > wrote:
>
> >
> >    *HD1080i or HD480i? 6600 Component out*
> > ------------------------------
> > Long-time reader, first time poster.
> >
> > I am a newbie running MythTV from SVN on Ubuntu outputting component out
> > via a fanless Nvidia 6600. Reading some old posts from Jarod and others, I
> > was able to output to my TV (which accepts 1080I, not 720p on a 4:3 screen)
> > with the line in my xorg: Option "TVStandardard" "HD480i" No modelines
> > required.
> >
> > While this works great, it obviously isn't HDTV which was my primary
> > purpose for MythTV. (Can't wait to sell my Tivo!). When I add the line
> > Option "TVStandard" "HD1080i" I get a small desktop on what appears to be a
> > 1080i resolution. I can see that Nvidia is outputting a wide screen
> > resolution but the desktop is significantly narrower and shorter than the
> > NVidia output and is centered in the screen. I have tried the
> > Windows/Powerstrip route and gotten modlines that should work but don't seem
> > to help. Also, when MythTV kicks into watching a show under this mode, the
> > system freezes and requires a reboot.
> >
> > Second question. Considering that I have a 4:3 HDTV (16:9 didn't fit in
> > my entertainment center but I will be buying a front projection in the near
> > future), will 1080i output ever be able to fill the screen for shows that
> > are 4:3? Probably doesn't matter since those shows aren't HDTV anyway but I
> > don't think I can change Xorg.conf from one mode HD480i to the other
> > HD1080i on the fly. Or can I?
> >
> > Sorry for the newbie questions. BTW, I appreciate all of the folks that
> > respond on this and other forums. I took a little different route setting up
> > my first MythTV system on Ubuntu with a Fusion 5 Gold card and 6600
> > component output. While this is probably trivial for some folks, it was a
> > great challenge (and a ton of fun) for someone that has never worked on
> > Linux before. I had many, many problems all of which I was able to solve
> > (except this one) by reading through this and other forums. For the active
> > posters/problem solvers: Thanks! Not to mention the developers!
> >
>
> For anyone trying to do 1080i component out on NVidia 6200 or 6600, I
> struggled to get this to work so thought I'd post my solution for other's
> benefit.   Most posts in the past suggest to use tvstandard HD480i (not
> HDTV) when using component out directly from a 6200 or 6600.  I was able to
> get HD1080i to work on my 6600 with no modelines by doing the following:
>
> Nvidia 7676
>
> In my xorg.conf:
> Under device settings:
> Option "TVStandard" "HD1080i"
>
> Under screen:
> modes "HD1080i"
>
> This got me to a full 1080i display with 1080i desktop but X locked up
> upon playing video.   To fix that:
>
> Open nvidia-settings and set vsync-to-blank to unchecked (not default).
> (could also modify the nvidia settings file directly - I did both but assume
> along would work)
> Everytime X loads, type:
> $ nvidia-settings -l
>
> The only problem is that this is still horribly overscanned.   Will
> probably play with modelines in the future to see if I can fix this.  Have
> read posts that say there is no answer short of getting a TV technician to
> change the TV.  I got the nvidia-settings -l command from posts on NVNews
> and they suggest you need to type that command every time X loads.   I also
> found that to be true.  People smarter than I am could probably suggest how
> to get the line for nvidia-settings -l to load on every startup. I am still
> typing mythbackend, sudo lirc, and mythfrontend everytime I boot my
> computer.  Just haven't worked on this yet.  The basic instructions didn't
> work for me.
>
>
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