[mythtv-users] Nvidia TVout problem

[Stephen Atkins]

Hello.  I posted on Tuesday my XF86Config and .nvidia-settings-rc for my fx3200
using the 6106 drivers.  I have made a couple of modifications (run X at 640x480
instead of 800x600) and I've also dropped the a/v sync.  It good now but not
perfect.  The only thing I noticed was that I'm getting late frames showing up
in the mythfrontend log.  This causes a jump in the video when the camera pans
quickly.  I noticed this the most while watching Law & Order last night.  Over
all its better than when I first connected it to the tv.

Stephen

> -----Original Message-----
> From: mythtv-users-bounces at mythtv.org
> [mailto:mythtv-users-bounces at mythtv.org]On Behalf Of Trevor Hill
> Sent: Sunday, July 11, 2004 5:37 PM
> To: Discussion about mythtv
> Subject: Re: [mythtv-users] Nvidia TVout problem
>
>
> J. Donavan Stanley wrote:
>
> > Trevor Hill wrote:
> >
> >>>> I wondered if it might have something to do with a custom mode, but I
> >>>> honestly have no idea how the "ModeLine" parameters work, and
> >>>> wouldn't know
> >>>> where to go about finding values to stick in there.
> >>>>
> >>>
> >>>
> >>>
> >>>
> >>> Its some ugly voodoo, but there are a few folks on the list that
> >>> know 'em quite well...
> >>>
> >>>
> >>
> >>
> >> Still wondering if this might be it.
> >
> >
> > Here's what I use:
> > ModeLine     "800x600" 40.1 800 848 968 1056 600 601 605 628
> >
> > _______________________________________________
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> > mythtv-users at mythtv.org
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> >
> >
> >
> I used some modelines I gathered from the list, and tried running
> videogen to get custom modelines for my card, and it didn't have any effect.
>
> To summarize:
>
> 1.  Watching TV with the 6106 drivers is absolutely horrid (one big pile
> of interlacing).
>
> 2.  Watching TV with the 4363 drivers isn't bad, but once I'm done
> watching video in mythTV, the screen is shifted to the right and the
> left is a garbled, interlaced combination of the extreme left part of
> the screen and the extreme right part of the screen. I also discovered
> that if I cat /dev/video > output.mpg and then use mplayer, whenever I
> quit mplayer, I get the same effect (the X desktop is shifted over, and
> the left side of the screen is garbled interlacey stuff).
>
> 3.  Trying to watch video at a resolution higher than 640x480 doesn't
> work at all -- not that this is a major problem, but Stanley's 800x600
> modeline didn't do me much good.
>
> 4.  kerneldeint, adjust, de-interlacing, trying to use the option that
> runs the gui and TV in separate 'modes' (trying to force a mode switch
> when I end TV, as mode switching appears to clean things up when done
> manually), flicker filter in 6106, blank on Vsync...none of these are
> having any effect.
>
> 5.  None of these problems appear at all on my monitor, ever.
>
> So I'm left with three options:
>
> A.  I've missed some really really simple set-up thing.  I'm not sure
> how likely this is, as I think 6106 would generally tend to improve the
> situation, and not make it much much worse.  However, it's definitely
> possible, seeing as I'm grasping at straws here.
>
> B.  Something is wrong with my TV-out.
>
> C.  Something is wrong with the TV set that prevents it from syncing
> properly.
>
> I can take my mythbox to a friend's or family member's house to try and
> eliminate C, but as for A and B, I'm absolutely stumped.  Other than
> picking a totally new Linux distro and starting over, just to see if can
> set it up right when doing it a different way, I don't know what else to
> do other than give up and deem it unusable, as I can't afford another
> TVout card at the moment, especially when I"m not even sure that's the
> problem.
>
> Frustrated,
> --Trevor
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