[linux-audio-user] Jack server outputs no sound

[Carlos Pino]

Ismael Valladolid Torres wrote:

>I download a test WAV file testing.wav. ALSA here seems to be working
>nicely, as I can hear the test sound using aplay.
>
>I try to do the same using jackd. I start it as:
>
>$ jackstart -d alsa
>
>And from another shell I do and get:
>
>$ jack.play testing.wav
>jack.play: sample rate of file not that of server
>
>Let's assume this is correct. So I stop jackstart and run it again
>like this:
>
>$ jackstart -v -d alsa -r 11025 -S
>  
>
 Hi,have you try     jackd  -v -d alsa -r 11025 -S    instead?

>Then jack.play doesn't give any error but I can hear no sound. Find
>attached jackstart's stderr output.
>
>This computer is a Dell Latitude D610 laptop with an Intel ICH6 AC'97
>audio controller running Debian sid and a 2.6.15.2 kernel with
>preemption enabled and the realtime module loaded. Summarizing, ALSA
>outputs sound, but jackd through ALSA doesn't.
>
>I got here since I noticed that fluidsynth played MIDI files using
>ALSA but not using jackd. Then I discarded a fluidsynth issue.
>
>Any ideas?
>
>Cordially, Ismael
>  
>
   Saludos
 --Carlos.