[mythtv-users] DSP Sound Question

Leandro Dardini ldardini at tiscali.it
Sat Jan 17 15:47:56 EST 2004


If you have the /dev/sound directory, then mythtv try to open
/dev/sound/dsp, but alsa connect your sound card to /dev/dsp. The simpler
solution is to remove the /dev/sound directory.

Leandro

----- Original Message ----- 
From: "Chris Ogles" <ntsysop at planetenigma.org>
To: <mythtv-users at mythtv.org>
Sent: Saturday, January 17, 2004 7:06 PM
Subject: [mythtv-users] DSP Sound Question


> I had mythtv working great, but the computer puked on me and now I am
> having sound trouble.  I am running this under Gentoo and the newest
> alsa-driver (sound driver is via82xx).  I can get video and sound with
> tvtime.  I have also done a aplay /dev/dsp and I can hear the sound just
> fine that way.  I have sound from tv card going to line in on the sound
> card.
>
> The problem is when I try to watch a recording or live tv, I get the black
> screen of death.  The console that I launched from doesn't give much
> information about any errors, however, the myth log has contains this:
>
> Starting up as the master server.
> 2004-01-17 11:36:49 Enabled verbose msgs : important general
> 2004-01-17 11:36:51 Found changes in the todo list.
> 2004-01-17 11:36:55 MainServer::HandleAnnounce Playback
> 2004-01-17 11:36:55 adding: server1 as a player 0
> 2004-01-17 11:36:55 MainServer::HandleAnnounce Playback
> 2004-01-17 11:36:55 adding: server1 as a player 1
> 2004-01-17 11:36:55 MainServer::HandleAnnounce Playback
> 2004-01-17 11:36:55 adding: server1 as a player 0
> 2004-01-17 11:36:55 MainServer::HandleAnnounce Playback
> 2004-01-17 11:36:55 adding: server1 as a player 0
> 2004-01-17 11:36:55 adding: server1 as a remote ringbuffer
> 2004-01-17 11:36:58 Changing from None to WatchingLiveTV
> Cannot open DSP '/dev/sound/dsp', dying.
> open: Device or resource busy
> Could not detect audio blocksize
> Cannot open DSP '/dev/sound/dsp', exitingopen: Device or resource busy
>
> I am a little confused as why aplay works and myth does not.  I have
> worked on this last night and this morning and need a little help.  Anyone
> have any more trouble shooting ideas or thoughts to help me get passed
> this problem?  What permission should /dev/dsp have? (/dev/dsp is
> root:root 555 and /dev/sound/dsp is root:audio 660)
>
> Thanks
> Chris
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