[mythtv-users] mythfronend stuttering

Chad masterclc at gmail.com
Tue Jan 17 11:31:24 UTC 2006


> >Well, there's some info missing here that might help ;)
> >
> >What CPU, videocard, soundcard and how are all these setup (if
> >videocard is NVidia, what drivers, and are you using xvmc...).  :)
> >
> >Also, on the Gentoo note, I use the SVN-ebuilds most the time (though
> >occasionally I forget I have them and grab the latest SVN source and
> >compile by hand :D ).
> >
> >Chad
> >_______________________________________________
> >mythtv-users mailing list
> >mythtv-users at mythtv.org
> >http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> >
> >
> >
>
> What is xvmc?

Xvideo Motion Compensation.  In lamen terms it offloads the video to
the graphics processing unit (GPU) from the CPU.  It's drawback is
that it generally only does mpeg2 decoding.

> Is it really a good idea to use the trunk for something that's as
> complete as mythtv? (I can understand using the trunk for something
> pre-alpha.)

Not always no.  I think a lot of people on here suggest the Trunk
because it's been a fair amount of time since the last stable release
(which is a better guideline as to whether or not to use SVN/CVS or
the official release).  However, it's not absolutely necessary, it's
just that there are some really good code updates/upgrades/additions
in the SVN release that may make your system play nicer than the
latest release (currently 0.18.x).

> Here are the specs of the computers:
>
> The computer running mythbackend:
> Asus K8N-E (nForce4 Ultra)
> AMD Athlon 64 3700+ s939
> 1GB PC3200 (2x512MB)
> nVidia GeForce 6600
> Using onboard sound
> Using onboard ethernet (forcedeth)
> Gentoo i686 w/ linux-2.6.15-ck1

Sounds nice, also sounds like a TON of overkill in areas that don't
need it if this is JUST a backend. :)

> My Computer:
> Asus K8V-X (Via K8T800)
> AMD Athlon 64 3000+ s754
> 1GB PC3200
> nVidia GeForce 6800GT 256MB
> M-Audio Revolution 7.1
> Using onboard ethernet (marvel 88NE8001)
> Gentoo i686 w/ linux 2.6.14-ck6

Certainly sounds like a decent enough system, as long you look into
and use XvMC, you should be able to playback mpeg2 content without
'stutter'.

> Switch: Dlink DGS-1005D (both connected with Cat5e, speed is around
> 250-280Mb/s)
> _______________________________________________

Good Luck!

Chad


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