[linux-audio-user] jackd -d alsa -d hw:0 -p512 / problem to start

[Tommi Sakari Uimonen]

>    I was installed alsa + jackd, and jackd not start using this command
>    line:
>
>    # jackd -d alsa -d hw:0 -p512
>
>    And the output is an infinite lines just like the following lines...
>
>    **** alsa_pcm: xrun of at least 0.019 msecs
>    **** alsa_pcm: xrun of at least 0.051 msecs
>    **** alsa_pcm: xrun of at least 0.016 msecs
>    **** alsa_pcm: xrun of at least 0.015 msecs
>    **** alsa_pcm: xrun of at least 0.020 msecs
>    **** alsa_pcm: xrun of at least 0.014 msecs
>    **** alsa_pcm: xrun of at least 0.025 msecs

Try running as root and with jackd -R -d alsa -d hw:0 -p 512

also try increasing -n 4 (6,8,10..), it might help for the xruns. But I'd
say that running with realtime (-R) will do the job.

>    But jackd is 'running' but not usable, because 'ardour' abort saying:
>
>    'jackd not present'

Remember to start ardour as the same user you start jackd.


Tommi Uimonen