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

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Subject: Re: [linux-audio-user] jackd -d alsa -d hw:0 -p512 / problem to start
From: Tommi Sakari Uimonen (tuimonen_AT_cc.hut.fi)
Date: Sun Oct 26 2003 - 09:40:40 EET

> 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

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