[mythtv-users] HD3000 DVB Recordings - Freezes on Playback

[frank s]

Hello, I am a newbie to mythtv and have a setup that
is working fairly well, but is having a problem with
freezes under certain conditions.  

I have been searching the board for MythTV users who
are having a problem similar to what I am experiencing
and have turned up a couple of posts that are similar.
 Neither have a posted resolution or are linked, but
they may be the same.

First a short description of the problem as I am
experiencing it:

Setup
- HD3000 connected to us-cable (digital)
- Dell 4700 w/Pentium 4 Processor 530 with HT
Technology (3.00GHz, 800 FSB)
- 512 MB RAM
- 160 GB EIDE SATA Hard Drive (7200 RPM)
- Hauppauge PVR 1081 RT connected to us-cable (analog)
- Fedora Core 4
- MythTV 0.18.1
- frontend and backend are both on this box

Problem symptoms
- watching live HDTV sometimes freezes (mostly with
720p format)
- playing back HDTV recordings made while watching
analog tv usually freeze
- playing back HDTV recordings made while frontend is
idle appear NOT to freeze (7 hours of recordings made
with no freeze)
- when freeze occurs kswapd0 becomes very active and
the disk usage grows with time
- a particular recording will always freeze at the
same point on multiple playback attempts
- skipping past the freeze point does not cause a
freeze, but audio is lost even though the video is
good
- playing the recording in the window of the select
recording page allows the video to play right through
the freeze point without freeze occurring (of course
there is no audio at all in this case)
- the frontend reports a prebuffering pause when the
freeze occurs
- the freeze occurs at the same point when mplayer is
used to play the recording

Two previous posts that I found which appear to be
related to this problem are:

http://mythtv.org/pipermail/mythtv-users/2006-January/116465.html
and
http://mythtv.org/pipermail/mythtv-users/2005-December/115226.html

I would appreciate any ideas on how to correct this
issue.  Thanks in advance for your help.

Frank




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