[linux-audio-user] Problem with jackd

Luke Yelavich lukethemuso at ozemail.com.au
Wed Mar 12 04:24:00 EST 2003

Hi raph
For a start, you could rewrite the .asoundrc file to reflect the type of 
card you have. For example, this is what my .asoundrc file looks like, and 
I am using an envy24 chipset, which uses the snd-ice1712 module.

pcm.ice1712 {
    type hw
    card 0

ctl.ice1712 {
    type hw
    card 0

Then, I can launch jackd like this:

$ jackd -d alsa -d ice1712 &

Substituting ice1712 for the name of the sections defined in .asoundrc. So 
you could could simply use:

$ jackd -d alsa -d myname &

going by your current .asoundrc file.

NOTE: The & afterwards makes Jackd run in the background, so you can 
proceed to load a jack client, like Ardour.

Have you double-checked that the correct module for your soundcard is 
loaded? Have you run alsamixer to see if the volume is turned up for the 
card's outputs? It might also be good to ensure that you have no OSS sound 
modules loading either.

Are you able to use the ALSA drivers with other software like xmms, or KDE 
to play MP3s and the like, both through OSS emulation and ALSA itself?



At 07:45 PM 3/12/2003, you wrote:
>I would like to use ardour. I downloaded it from CVS and finally got it
>compiled, but I can't start jackd:
>titanium:~# jackd -d alsa -d hw:0
>jackd 0.50.0
>Copyright 2001-2002 Paul Davis and others.
>jackd comes with ABSOLUTELY NO WARRANTY
>This is free software, and you are welcome to redistribute it
>under certain conditions; see the file COPYING for details
>loading driver ..
>creating alsa driver ... hw:0|1024|2|48000|swmon|rt
>ALSA lib pcm_hw.c:866:(snd_pcm_hw_open) open /dev/snd/pcmC0D0c failed:
>No such file or directory ALSA: Cannot open PCM device alsa_pcm
>cannot load driver module alsa
>jack main caught signal 15
>here is my ~/.asoundrc
>pcm.myname {
>    type hw
>    card 0
>ctl.myname {
>    type hw
>    card 0
>(it is a copy from the one in /usr/share/doc/jackd/examples/)
>I could not find more details in the documentation or on
>Here is what I have in /dev/snd/
>controlC0  pcmC0D0p  seq  timer
>There is really no /dev/snd/pcmC0D0c
>What am I doing wrong? I tested it with alsa started and stoped. Did I
>misunderstood anything essential? I'm using debian woody on a Mac
>PowerBook G4 with alsa 0.90rc7 from sid and with a special mac kernel
>2.4.20 (from benh).
>Thanks very much for your help
>clef publique :
>S'il vous plaît, évitez de m'envoyer des attachements au format Word ou
>PowerPoint. Voir

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