[mythtv-users] HD3000 50% working -- blank mythfrontend on some chans

John Goerzen jgoerzen at complete.org
Sat Nov 20 22:35:47 UTC 2004


On Sat, Nov 20, 2004 at 11:16:09AM -0500, Doug Larrick wrote:
> John Goerzen wrote:
> >Also, on the sound issue -- my sound seems to have completely gone awy
> >since installing the pcHDTV card.  I guess I'll have to open the thing
> >up and make sure I didn't bump anything, but I am usually very careful
> >and would be quite surprised if I had.
> 
> It's possible.  Also note that the HD-3000 presents an audio device (I 
> think) and that might have interfered with your setup.

I've done some more checking on this and I'm very puzzled.  MythTV is
the only thing that is broken.  I even completely removed all the HD3000
drivers, modules, etc. and rebooted (everything but physically yanking
the card).  aplay (ALSA) works fine, as does bplay (OSS, /dev/pcm).
Mythfrontend doesn't make a peep, even playing recordings that worked
fine two days ago.  My alsamixer settings all look fine, so I'm puzzled.
I'll try to get sound working and then try the different patches.

> >OK, I will.  Are these patches integrated into CVS?
> 
> No.  But the more people provide feedback, the sooner they will be.
> 
> >I'm in the Wichita, KS area.  They don't seem to have much on that, but
> >I'll keep looking.
> 
> It's also possible that there's something about the streams that don't 
> play properly for you that's choking the MPEG decoder in Myth.  We've 
> seen this on occasion when somebody from a new area first tries it out, 
> since the stations all encode MPEG2 locally.  There was an ffmpeg 

Interesting.  Good tip, too, on the playback.  Do you usually recommend
mplayer ofr testing?

> Also, new drivers due to be released next week sometime will increase 
> the number of DMA buffers the HD-3000 uses, which should fix problems 
> some people are seeing under load.

I haven't seen any logged problems or other indications of trouble, but
I'll keep my eyes open.

-- John


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