Hi-
My mythtv system has 1xPVR-350, 1xPVR-500 using ivtv 0.4, and a newly added
DViCO FusionHDTV 5 Lite using DVB drivers. 1x200GB seagate+1x300GB seagate
HD LVM with XFS for /video and 1x40GB seagate for FC4 OS. I have DMA
enabled. DVI out via fx5200 at 1280x768. Chaintech nforce2 mobo, AMD2900
with 1gb ram. All 4 tuners can capture on their own with no problems. I
can capture with all 3 Hauppauge tuners at the same time no problems.
Trying to capture HDTV while capturing with the Hauppuge cards results in
normal analog recordings but the digital recording has dropouts and
scrambled bars across it. I need to double check if capturing digital NTSC
with the DViCO card also has the dropouts when one or more PVR cards are in
use.
I'm new to the HDTV part of mythtv and looking for feedback to tell me if
what I'm trying to do is realistic or not. And if it is realistic, where
should I look to troubleshoot. Thanks for any insight.
You might also consider moving your playback to a 2nd machine. If you
remove playback from that existing machine, it should be able to keep
up fine with HD recording/etc.
In my experience the frontend process is very spikey (as are video
drivers), which can wreck havoc with dmas/irqs and getting stable
recordings.
My backend records 2 HD streams and 1 PVR250 at the same time with no
problems on a 2400AMD with 512megs ram. I have a separate frontend for
playback and can watch 1 HD at the same time the other three are
recording with no problems. I have recorded 2 HD and 2 PVR250's at once
but the second 250 is not used any more now since I got rid of cable and
do mostly off air HD.
- James
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