[mythtv-users] Up and running, but have some questions/issues

James Pifer jep at obrien-pifer.com
Fri Oct 31 09:32:47 EST 2003


I have MythTV 0.12 and MythWeb working, running on Redhat 9 on a Dell
Optiplex 150 (PIII 1Ghz) with 512 RAM. The Tuner is a PVR-350.

I don't have TVOut working so I have it hooked up to my Infocus X1 using
the VGA cable. Sound kind of sucks(headphone jack --->> composite A/V),
but the video isn't bad. Still working on LIRC too, so I'm using the
keyboard for control.

Here it goes... Watching a LiveTV and recordings last night I noticed a
few things.

The commercial skip seemed to be working ok at first, then it started to
skip too early. It would leave the show 10 or 15 sec early and start
again near the end of the commercial, with some of the commercial still
left. Strict Commercial Detection is checked. Maybe it shouldn't be?

Sound issues:
The sound and video were out of sync at times. This was mainly when
watching and recording a show at the same time. These are not checked in
the setups:
Aggressive Sound Card buffering
Experimental A/V Sync
Extra audio buffering
Would any of these help that?

Sometimes when I try to start mythfrontend I get an error that something
using/dev/dsp. If I wait a few minutes or just keep trying, it
eventually starts. One confusing thing is that the "Troubleshooting
audio" section says that the instructions don't apply to PVR-250/350 and
they talk about troubleshooting /dev/dsp. I'm using a 350, should I be
having this problem? 

I think I did see a message about my sound card not supporting Full
Duplex. I'm running everything on one machine, but since I'm using a 350
I still shouldn't have a problem according to the troubleshooting doc.
Do I have something mis-configured?

According to dmesg I have DMA enabled as well and the hard drive has it
enabled. (according to "Fast CPU, choppy or jittery video) in the
troubleshooting. 

Last one is the time. My MythTV box is using NTP for it's time. Either
my time isn't as accurate as I think, or my cable company isn't very
diligent on their time. I'm missing the first few seconds of the shows
I'm recording. Any suggestions on dealing with this?

Any help is appreciated. Thanks,
James
(sorry this got kind of long but I was trying to be thorough...)



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