I have a Hauppauge WinTV PVR-350 (model 990) PCI adapter.
I've recently upgraded from IvyTV 0.2.0-rc3a and MythTV 0.16
to IvtTV 0.4.6 and MythTV 0.18.1. I'm operating on a Slackware
10.2 distribution with Linux kernel 2.4.31.
I have had some problems with recordings since the upgrade.
Whenever a new recording is played back it skips video frames
roughly every 3 seconds, but for the most part the audio is
just fine. Older recordings that were made when the 0.2.0-rc3a
driver was installed, playback perfectly while operating under
0.4.6 driver. I assume this means that the new recordings
were dropping video frames during the recording process.
I seem to think that the system would make good recordings
for the first 3 minutes after a system reboot... so I tried
increasing the number of MPG and YUV buffers on the ivtv.o
modprobe line. Note, I don't use the modprobe.conf file.
Increasing the buffers, only seemed to increase the good
behaviour from 3 minutes to 4 or 5, before recordings
were dropping frames (after a reboot).
I setup the driver according to my notes I posted here:
http://www.schaefer.dhcp.biz/pvr350tvout2.htm
I also (generally) setup the MythTV 0.18.1 according
to my notes that I posted here:
http://www.schaefer.dhcp.biz/MythTV/myth18.htm
Recently, I saw some threads for a patch to address some
runaway DMA issues, and tried applying that to a fresh
0.4.6. After installing that, the system would crash all
over the place. I put the previous 0.4.6 drivers (without
the patch) back in place two nights ago, and noticed
last night the recordings made during the day (yesterday)
were perfect. After watching two of the shows from
yesterday, I played a recording that was made while I
was watching those shows, and it had the regular skips.
I kind of assume this means that the recordings are okay
as long as the adapter is not busy performing playbacks
at the same time. I won't have any time until tonight
to see if that is the case with today's recordings.
One thing that I thought may have something to do with
this, that isn't MythTV or IvyTV related is: Under the
MythTV 0.16 I had a 8 GB primary master IDE drive for
the system disk, and then (3) 320 GB drives in a stripe
set. During the upgrade, I installed a 400 GB drive in
the primary master location, partitioned a 65 GB system
partition, and setup a stripe set among the (3) 320s and
the remaining drive space on the 400 GB.
I don't suspect the difference in the stripe set to be
a problem, but it wouldn't be a surprise if it were either.
What should I do next to troubleshoot this?
_______________________________________________
ivtv-users mailing list
[email protected]
http://ivtvdriver.org/mailman/listinfo/ivtv-users
