[mythtv-users] Re: Choppy video on Pundit&pvr350 backend&frontendsystem: SOLVED 99%

Robert Rozman rozman at fri.uni-lj.si
Wed Apr 28 07:17:28 EDT 2004


after quite some time I found solution to my problem. I had previous
problems with broken Xv and there I set up mythbackend and frontend to run
at highest priority (-19). I solved xv problems but left those priorities.

Email from Henk got me back, cause he said not having problems only when
running frontend at default priority. I obviously misunderstood priorities
settings and just thought that having higher priority will do better in any
case - but how can one be wrong.

It seems like running much better, but if it's 100% I'll be able to say
after some time...

Thanks all guys for replies,



----- Original Message ----- 
From: <MMartach at t-online.de>
To: <mythtv-users at mythtv.org>
Sent: Wednesday, April 28, 2004 11:04 AM
Subject: [mythtv-users] Re: Choppy video on Pundit&pvr350

> Hi Robert,
> i had the same trouble:
> backend: PVR350  on a small via c3 board
> frontend: ASUS board with athlon 2000
> The live tv and the playback was verry choppy. It was not usable.
> I tracked down the problem:
> The backend is transfering the video stream with tcp push-mode (ACK
> needed within a small timeout).
> The frontend did not send the ACK to the backend.  But the frontend was
> not very loaded: only 10-15 % cpu usage!
> Reason:
> the onboard ethernet was sharing the interrupt with the vga card.  It
> seem's that from time to time
> an interrupt was lost.
> Solution:
> Diasable the onboard ethernet and use a cheap PCI ethernet card.
> Cheers
> Martin
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