[mythtv-users] Why use PVR 350 TV-out? (Was: X and PVR 350)

Niklas Brunlid nbr at ticalc.org
Fri Jan 28 16:51:21 EST 2005


On Fri, 28 Jan 2005 21:41:11 +0100, Didde Brockman  
<didde.brockman at starring.se> wrote:

> This question is very interesting. I have a TV-out on my nVidia GPU but
> I just recently got the TV-out on the Hauppage to work well – thanks to
> a miracle as I had tried it four times already without success. I
> haven't tried playing a DVD-rip, Xvid, DivX or anything but "TV"
> through the box. Are you guys saying that a AMD64 2800+ will have
> problems coping with the copying of data from and to the PVR-350's in /
> out? If that's the case then I seriously wonder why one would ever buy
> a 350 as opposed to a 250.

As stated earlier in the thread, my P4 2.4GHz has no problems with this,  
so an AMD64 2800+ shouldn't either. The data is certainly copied fast  
enough that no frames are dropped. And IIRC the copy is done with DMA so  
the CPU is free to do other things, like decode the next frame.

What the 350 can't do is update separate sections of the screen without  
refresing all of it, which makes it bad for stuff like playing games or  
showing MythMusic visualizations. This may be a driver issue though.

/ Niklas


More information about the mythtv-users mailing list