[mythtv-users] Unable to get video playback in MythTV

[Brian Matthew Sperlongano]

Hi Jason,

Yes, it does sound like we have the same issue!.  I'm also using the
saa7134 driver to the same effect.

Actually, I had the audio device set to /dev/dsp, but I changed it to
/dev/dsp1 to match the dsp_nr= line in modprobe.conf.  Anyhow, I tried
it again, and still, it INSISTED on trying to open /dev/dsp and not
/dev/dsp1.  This is very interesting.  I read somewhere that it may be
better to use ALSA instead of OSS and that may solve the problem...any
ideas?

On Tue, 12 Oct 2004 17:04:24 -0400, Jason Slaughter <jason at slaughter.com> wrote:
> I am having almost exactly the same problem, so I would be very curious to
> hear the solution. My card works fine in tvtime and xawtv as well.
> 
> One thing I have noticed (which may not be the case for you) is that my
> saa7133 TV card (using the saa7134 driver with oss=1 as an option) is
> creating the OSS device "/dev/dsp1" and not "/dev/dsp". I have configured, in
> mythtv-setup, my capture card to use "/dev/dsp1" but *every* time I load the
> MythTV "Watch TV" plugin it has the line: "Opening OSS audio device
> '/dev/dsp'." It looks like the configuration in the database (cleary
> specifying "/dev/dsp1") is not being read. I've tried with "/dev/dsp2" and
> others as well, but MythTV insists on trying only "/dev/dsp," for both live
> TV and scheduled recording.
> 
> Is it possible that you are having the same issue? Or perhaps they're
> completely unrelated? At any rate, does anybody know how to make MythTV read
> its configuration database properly?
> 
> 
> 
> On Tuesday 12 October 2004 16:33, Brian Matthew Sperlongano wrote:
> > Okay, I am SOOO close to getting this thing working now! I have
> > perfect video and audio in tvtime, and I can schedule and record shows
> > in myth (or at least presumably - the .nuv files show up in the
> > storage directory).
> >
> > The only problem is that I have NO video playback in mythTV! Thus, I
> > cannot watch live tv or recorded shows.
> >
> > Does anyone have any suggestions as to what I can try? I've been
> > wracking my brain on this one.
> >
> > I'm using myth 0.16 w/256megs ram and a Celeron 2.4GHz.
> >
> > The output of mythfrontend is as follows:
> >
> > 2004-10-10 20:56:56 Using protocol version 8
> > 2004-10-10 20:56:56 Using protocol version 8
> > 2004-10-10 20:57:15 Using protocol version 8
> > 2004-10-10 20:57:21 taking too long to be allowed to read..
> > 2004-10-10 20:57:26 taking too long to be allowed to read..
> > 2004-10-10 20:57:26 RemoteFile::Read() failed in RingBuffer::safe_read().
> > 2004-10-10 20:57:26 Opening OSS audio device '/dev/dsp'.
> > 2004-10-10 20:57:26 Audio fragment size: 4096
> > 2004-10-10 20:57:26 Using XV port 56
> > 2004-10-10 20:57:26 Changing from None to WatchingLiveTV
> > 2004-10-10 20:57:26 Audio buffer overflow, audio data lost!
> > 2004-10-10 20:57:26 Audio buffer overflow, audio data lost!
> > ---repeats for a few pages----
> > 2004-10-10 20:57:26 Audio buffer overflow, audio data lost!
> > 2004-10-10 20:57:26 Audio buffer overflow, audio data lost!
> > 2004-10-10 20:57:26 Audio buffer overflow, audio data lost!
> > 2004-10-10 20:57:29 Waited 2 seconds for data to become available,
> > waiting again...
> > 2004-10-10 20:57:31 Waited 2 seconds for data to become available,
> > waiting again...
> > 2004-10-10 20:57:33 Waited too long for ringbuffer pause..
> > 2004-10-10 20:57:34 Waited too long for ringbuffer pause..
> > 2004-10-10 20:57:35 Waited too long for ringbuffer pause..
> > 2004-10-10 20:57:36 Waited too long for ringbuffer pause..
> > 2004-10-10 20:57:36 RemoteFile::Read() failed in RingBuffer::safe_read().
> > 2004-10-10 20:57:38 Changing from WatchingLiveTV to None
> 
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