[mythtv] no picture, no sound ... ?
Sat, 12 Oct 2002 16:17:33 -0400
On Saturday 12 October 2002 02:57 pm, Dr. J. S. Pezaris wrote:
> From: Isaac Richards <email@example.com>
> No, it's hanging. It should either be printing an error message saying
> why it couldn't setup the Xv stuff, or saying what Xv port it was using
> after it sucessfully set it up. It's not doing either, so it's hanging =)
> Aha. I'm at a loss, then, to explain why the ringbuf.nuv file is growing
> as mythtv runs (and not coincidentally, the disk access light shows
Threads. The playback threads are what's hanging, the recording threads are
still going fine.
> You said xawtv only works when you use the -noxv switch? I assume it
> hangs as well?
> Not exactly. Without the -noxv switch, xawtv is fully functional, except
> that the opened window shows a display that is garbled (typically purplish
> lines as if sync wasn't locked-in) and unchanging. The UI works, and when
> you change channels, it updates the garbled display to a new, fixed,
> garbled display.
> With the -noxv switch, xawtv works fine, except there's no audio. The
> opened window is live TV, changing channels works fine, etc., the UI works
> as you'd expect, save the lack of audio. The audio is fine when using
> "radio" to use the FM tuner part of the board. A stereo patch cord is in
> place between the TV caputre card output and the motherboard audio input,
> and is required for "radio" operation, so is functional. But right now,
> working video is the larger issue.
Weird. Well, I suppose you could insert debugging statements in throughout
the XJ::Init() function in libs/libNuppelVideo/XJ.cpp and see exactly where
it stops.. Other than that, dunno what else to have you do, really.
> > Is there some other tool that understands the .nuv format that I can
> > use to check if the contents of ringbuf.nuv is valid?
> Nope, there's not. Well, if you record an entire program and then go to
> the 'Watch a Recording' screen in mythfrontend, it'll play a little
> preview video of the file, without sound..
> Can I rename ringbuf.nuv to an appropriate filename so that the video
> player can find it? I'll start recording a show in a few minutes, in any
> case to have something to check.
Nope, it needs to have a database entry to show up in the list of recordings,
and the only way you can get that is to finish a recording.