[mythtv] trouble changing channels
Mon, 26 Aug 2002 22:05:49 -0700
Quoting Isaac Richards <firstname.lastname@example.org>:
> On Monday 26 August 2002 10:16 pm, Matt Ettus wrote:
> > Absolutely nothing else is using /dev/dsp (checked with lsof). I get no
> > audio from mythtv, but I can hear live audio straight from the card.
> > Pause, FF, rewind all seem to work ok. So does the on-screen-display. I
> > can go into and out of the program guide. However, if I hit the up or
> > arrows to change the channel, the display freezes. I can go back to the
> > original window and ctrl-c it, but that is the only way out.
> > Any ideas? Thanks
> Looks like your soundcard can't be opened full duplex, which is why it's
> hanging on channel change. Fix that (alsa might work), and it'll work.
Good catch. But after investigating, there are other issues....
>From a clean boot, I can run other audio apps (full-duplex or just play or just
record, even xawtv) as much as I want. I can kill -9 them in the middle. No
problem. But if I run mythtv, whether from a clean boot or after running other
sound apps, it can't open the audio device. Then, after I quit mythtv, no other
program can open the /dev/dsp device for writing until I reboot. Reading is
still ok, though.
This is confirmed by using mythmusic -- I can run mythfrontend, and play music
just fine, until I try to watch tv with it.