[mythtv-users] Help in playing hdtv

[Juergen Sachs]

Am Montag 11 Februar 2008 22:37:47 schrieb Brad DerManouelian:
> On Feb 11, 2008, at 1:22 PM, Brad DerManouelian wrote:
> > On Feb 11, 2008, at 1:13 PM, Juergen Sachs wrote:
> >> 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 ?
> >
> > It's probably time to start playing with your TV Playback options.
> > Turn off any deinterlacer you have running to see if that helps. Turn
> > on aggressive audio buffering and check again. Also, can you tell if
> > you have OpenGL working correctly? Oh, one more thing to check in your
> > xorg.conf:     Load "glx" in the modules section. I think that's the
> > option that made my system go from "completely unusable" to "Hooray it
> > works perfectly".
>
> Also, when you look at top, press the number 1 so you can see how much
> is being used for each core. X should be using one of your cores and
> mythfrontend should be using the other (assuming they are both using
> over 50% of each core). If they are both using the same core it could
> be because you have some other process taking up too much CPU to allow
> those two processes to run on separate cores. Running commflagging or
> transcoding without allowing them to be nice will do this.

For me it seems to be ok... I see that the load is shared across both cpu's.
sometimes one cpu is at 100%, but most of the time I see a shared load of 
50-70% on both cpu's.

I did not see other tasks consuming cpu. but I see mythfrontend always taking 
> 95%.
Other taskes come up for a short time with less than 5%. but this should be 
normal and "X" should have some cpu time I guess :-)

Juergen



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