jackd crashing

[Cory K.]

Larry Lines wrote:
> Hello,
>
> I am new to Ubuntu Studio.  Not new to Linux audio.  I love Ubuntu and the possibility of this distro looks amazing.  The install is great.  The look and feel is great.  Good work to everyone involved.
>
> Now my problems with my Dell Inspiron 1501 AMD64 Dual Core Turion have been constant from the beginning, but overall I like the machine.  But the reason I have a laptop is for studio work and I have never really been able to get this to work with jack properly.  I am running the 64 bit version of Ubuntu Studio.
>
> Right now I have jack running with no Realtime priority.  jackd -v -d alsa
> I can't get any sound at all.  Connected fluidsynth with a soundfont I know works on a 32 bit system to vkeybd.  Connected and rechained properly.  No sound.  I know the soundcard is working.  Even if just from the sound at system startup.  And of course the messages output on jackd are the following which is bad I'm pretty sure.
>
> 12:16:24.568 XRUN callback (17 skipped).
> 12:16:26.645 XRUN callback (16 skipped).
>
> Then if I try to start with Realtime priority.  It just core dumps.  I can't actually find the core dump, but it dumps.
>
> :~$ jackd -R -d alsa
>
> jackd 0.103.0
>
> Copyright 2001-2005 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
>
>
>
> JACK compiled with System V SHM support.
>
> loading driver ..
>
> Enhanced3DNow! detected
>
> SSE2 detected
>
> creating alsa driver ... hw:0|hw:0|1024|2|48000|0|0|nomon|swmeter|-|32bit
>
> control device hw:0
>
> configuring for 48000Hz, period = 1024 frames, buffer = 2 periods
>
> ALSA: final selected sample format for capture: 32bit little-endian
>
> ALSA: use 2 periods for capture
>
> ALSA: final selected sample format for playback: 32bit little-endian
>
> ALSA: use 2 periods for playback
>
> jackd watchdog: timeout - killing jackd
>
> Aborted (core dumped)
>
> I'm committed to getting this working, so let me know if there is anything missing.
>
> Larry Lines
>   

Please try using JACK Control and see if that helps.