[mythtv-users] Choppy video on Pundit&pvr350
rozman at fri.uni-lj.si
Tue Apr 27 15:06:12 EDT 2004
thanks for response. If I understood, you're running backend & frontend on
same Asus pundit without any problems ?
All (backend,frontend,X,) at the default priority ?
What is your HD performance (hdparm -tT /dev/hd? ) ?
Did you get choppy video when you run mythfrontend with higher priority ?
Thanks in advance,
----- Original Message -----
From: "Henk Poley" <hpoley at dds.nl>
To: "Discussion about mythtv" <mythtv-users at mythtv.org>
Sent: Tuesday, April 27, 2004 7:05 PM
Subject: Re: [mythtv-users] Choppy video on Pundit&pvr350
> Op dinsdag 27 april 2004 01:36, schreef Robert Rozman:
> > Hi,
> > I'm having choppy video playback of live tv and all recordings on Asus
> > pundit (P4 2.4G and Suse 9.0).
> Seems like my setup. I run it with a Celeron 2.4GHz and Gentoo.
> > I've had problems with Xv not working, but got that to xvtest of 2400
> xvtest returns ~1800 here if I remember correctly. But x11perf -shmput500
> crashes with some odd thing about some X command not valid (can give full
> error message, but not now, system is off)
> > I have HD with 40 Mb/sec (measured with hdparm).
> > I'm running backend and frontend at nice of -19.
> I never had any succes running the frontend at anything else than the
> niceness. More prio would make it hick. Never tried renicing the backend
> > I still get occasional
> > (every few seconds) freezes on video that shows as prebuffering pause in
> > mythfrontend. I understand that probably backend is not providing data
> > enough - but how could this happen? Playback (decoding of mpeg2) takes
> > 10-15% of CPU, I have pvr 350, so all resources should suffice for
> > playback - BTW streams from this backend play ok on EPIA M9000 and even
> > dsmyth (I have live tv stream at 3000 kbits/sec) on win32 laptop.
> At -19, the highest priority, X will probably get starved since it is
> at -10 (kernel 2.4) or 0 (kernel 2.6, when runlevel properly configured).
> Henk Poley <><
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