[mythtv-users] More than one backend?

Rob Beard rob at esdelle.co.uk
Mon Apr 16 22:20:26 UTC 2007


Stroller wrote:
> On 16 Apr 2007, at 21:03, Rob Beard wrote:
>   
>> ...
>> Well I was thinking that if I had a BT878 card in the front end PC I
>> could run my Playstation 2 through it (and get rid of a AV switch  
>> box at
>> the same time).
>>     
>
> Probably not a great idea.
>
> I think MythTV has a lag of a couple of seconds when playing live TV,  
> so that you'll only see the alien you're supposed to shoot 2 seconds  
> _after_ it has leapt out at you. Even if this is not the case, any  
> framebuffer capture card introduces _some_ lag - I've read gaming  
> forums on which the posters complain even about lags in the order of  
> 0.06 - 0.2 seconds.
>
>   
Thats what I found when I was testing my Adaptec card.  I put the audio 
in to the sound card and the video into the Adaptec card and because of 
the encoding there was a second or so delay.
> The best way to connect the Gamecube to a TV is via component. In  
> Europe RGB SCART is a very acceptable alternative and the US S-Video  
> is probably OK. I would imagine PS2 connections are similar. I don't  
> consider myself a "connoisseur" but find composite - the yellow cable  
> supplied with most consoles - to give quite a poor picture.
>
>   
Hmm, I think I'll invest in a new SCART switch box.  I'm hoping I can 
connect the MythTV box directly to the TV using RGB SCART (I was going 
to use an ArcadeVGA card for this, but after Mitch mentioned about XvMC 
I think I'll get a cheap GeForce 6xxx card and just tweak the xorg.conf 
settings.
> Connections depend very much on the TV, and even were you to spend  
> £1000 on a current model you'd be advised to shop around quite  
> carefully to get the best connections for MythTV & console picture- 
> quality. Ideally you might connect MythTV to your telly via HDMI, DVI  
> or VGA, your PS2 via the next highest-quality input available and get  
> rid of whatever else is using the switchbox; either MythTV will  
> accommodate the functionality of that device, or you're facing the  
> insoluble switchbox problem experienced by all gamers everywhere.  ;)
>   
At the moment I have a cheap 28" Widescreen CRT TV.  I'm looking to 
upgrade to HDTV possibly next year, I'll look out for something with a 
few inputs, ideally with DVI/HDMI.

Thanks for the advice.

Rob



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