[mythtv] no picture, no sound ... ?

Isaac Richards mythtv-dev@snowman.net
Sat, 12 Oct 2002 00:54:04 -0400

On Saturday 12 October 2002 12:31 am, John Pezaris wrote:
> Hi All,
> I've got a Shuttle FV25 motherboard with a 1.4 GHz Celeron, a built-in
> Savage S4 Pro (PM133) video card, and a AverTV Studio video capture card
> (previously, I was trying to build a VIA C3-based system, but that
> processor just doesn't have the necessary horsepower).  MythTV installs and
> compiles fine, database loads, and everything looks good until it comes
> time to use it.  Then, MythTV says:
> media-box$ mythtv
> Probed: Television
> Probed: Composite1
> Probed: S-Video
> Changing from None to WatchingLiveTV
> using rtjpeg
> This seems normal, and the buffer file (/data/video/ringbuf.nuv) starts
> growing at what seems a reasonable rate, but there's no video and no audio.
> No video window is opened.  "ps" indicates 30-40% processor load on the
> 480x480 recording.
> Xawtv works *only* with a -noxv switch, and then works fine.  "radio" (to
> control the FM tuner in the AverTV Studio card) works fine, too.  mplayer
> works well, although I don't know enough to fully interpret the verbose
> status messages.  xvinfo reports that there is a v4l device (Adapter #0)
> and a Savage device (Adapter #1).
> Anyone have a good test to insure Xv is working correctly on my hardware?

What's the entire output of xvinfo?

> Other tests to run to deduce what's going on?

Well, you could run it in gdb and hit ctl-c after it hangs trying to setup the 
video output, see where it is and all that.