[mythtv-users] Help in playing hdtv

[Juergen Sachs]

Am Montag 11 Februar 2008 21:27:28 schrieb Brad DerManouelian:
> > I am running mythtv trunk version an try to get hdtv running
> > smoothly. First
> > I have to say, that until running the trunk version (I had v0.20 fixes
> > before) hdtv livetv was impossible. Now it is playing, but with a
> > very "jittery" picture and skiped frames.
> >
> > I do not know if it is a problem of my hardware configuration:
> > Gfx: GeForce 7300 SE with native nvidia driver
> > CPU: Intel(R) Core(TM)2 CPU          6320  @ 1.86GHz
> > Ram: 2GB
> >
> > So I think it is not too bad. But when I run "top" while playing a
> > livetv I
> > see it is displaying about 100% till 140% for mythfrontend. So I
> > guess I
> > reached the limits :-(
> >
> > Mythfronend is running as a normal user.
> >
> > So the question is if my hardware is not powerfull enough to play
> > hdtv, or
> > if
> > I have to tweak my config.
> >
> > Looking in the documentation did not show me a special configuration
> > hint.
> >
> > So maybe someone here has a similar config and can give me some
> > advice ?
>
> I would start by looking at your xorg settings. Which nvidia driver
> are you using? Do you have:
> Option "Use Events" "True" in your device section? If not, give that a
> try.
>
I did not have this option in my device section. So I added the option and 
restart the x server (init 3 -> init 5) same problem.
Now it plays smothly for about half a second, the stops, then resumes, then 
stops... But picture quality is brilliant :-)

But still my cpu is nailed to 100%. Ok this is only 50% of the overall cpu 
power but I think it is still to much.

I am using the gfx driver from nvidia, but do not know the exact version if 
this matters.

Maybe my gfx card is to weak for the job ?
Any more tips ?

Juergen
-- 
Jürgen Sachs
http://www.mobacomp.de/