[mythtv-users] nvidia mx 440 - tv blanks after a few minutes

[J. Donavan Stanley]

malcolm wrote:

>No actually I'm using the latest 5336.  I tried downloading and installing
>4363 per what I've seen in the archives but I'm assuming its ment for 2.4
>kernel boxes because I had all kinds of errors trying to get it compile and
>work on my box.  The 5336 installs without a hitch.
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Yeah it's a 2.4.x driver.  You're going to want to get it working 
though, that or wait till they release the next driver.  Currently every 
driver past 4363 is fubared in way or another.


>>XvMC is a way to accelerate MPEG2 playback using your video hardware.
>>It also precludes using things like deinterlacing filters.  The
>>deinterlace filter isn't just for monitors, it's for anything that's not
>>using an interlaced signal, and since the Nvidia drivers aren't
>>outputting an interlaced signal that's pretty much everything.  That
>>being said, on some chipsets the drivers appear to deinterlace
>>automagicly so it may not be needed.
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>You lost me here.  Are you saying I do or do not need deinterlaced signal?
>It was my understanding regular analog TVs have an interlaced picture.  I
>also thought from reading the archives that the nvidia mx 440 chips where
>outputing an interlaced signal at a hardware level? (one of the reasons I
>picked the card).  Is there something I have to do in software to get the
>signal interlaced?  How do I turn on XvMC?  Is that a Myth or nVidia driver
>setting?
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No you DO need an interlaced signal for perfect TV output, however since 
the NVidia drivers don't output an interlaced signal you normally need 
the deinterlace filter even when using a TV.  It could very well be that 
the mx 440 chips (and nforce2)  are interlacing at the hardware level 
which would be why I thought they were deinterlacing the signal, since 
they don't seem to require that Myth turn on the deinterlace filter.



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