[mythtv-users] Nvidia TVout problem

[Trevor Hill]

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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>
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