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From: David on 13 Apr 2008 04:08
Hello,

When I try to start the Jack Audio Connection Kit with QJackCtl it won't
start and gives this outout in the messagge box:

02:42:38.274 Patchbay deactivated.
02:42:38.277 Statistics reset.
jack_client_new: deprecated
Cannot connect to server socket err = No such file or directory
Cannot connect to server socket
jack server is not running or cannot be started
02:42:38.297 MIDI connection graph change.
02:42:38.484 MIDI connection change.
02:43:42.387 Startup script...
02:43:42.387 artsshell -q terminate
jack_client_new: deprecated
Cannot connect to server socket err = No such file or directory
Cannot connect to server socket
jack server is not running or cannot be started
starting artsd!
02:43:42.813 Startup script terminated with exit status=256.
02:43:42.814 JACK is starting...
02:43:42.814 jackd -R -dalsa -dhw:0 -r48000 -p1024 -n2
02:43:42.821 JACK was started with PID=19801 (0x4d59).
jackd: symbol lookup error: jackd: undefined symbol: _jack_get_microseconds
02:43:42.822 JACK was stopped with exit status=127.
02:43:42.822 Post-shutdown script...
02:43:42.822 killall jackd
jackd: no process killed
02:43:43.034 Post-shutdown script terminated with exit status=256.
02:43:44.860 Could not connect to JACK server as client. Please check
the messages window for more info.
jack_client_new: deprecated
Cannot connect to server socket err = No such file or directory
Cannot connect to server socket
jack server is not running or cannot be started

Any help with this would be appreciated.

Thanks
From: Michael Soibelman on 14 Apr 2008 14:01
David wrote:

> Hello,
>
> When I try to start the Jack Audio Connection Kit with QJackCtl it won't
> start and gives this outout in the messagge box:
>
> 02:42:38.274 Patchbay deactivated.
> 02:42:38.277 Statistics reset.
> jack_client_new: deprecated
> Cannot connect to server socket err = No such file or directory
> Cannot connect to server socket
> jack server is not running or cannot be started
> 02:42:38.297 MIDI connection graph change.
> 02:42:38.484 MIDI connection change.
> 02:43:42.387 Startup script...
> 02:43:42.387 artsshell -q terminate
> jack_client_new: deprecated
> Cannot connect to server socket err = No such file or directory
> Cannot connect to server socket
> jack server is not running or cannot be started
> starting artsd!
> 02:43:42.813 Startup script terminated with exit status=256.
> 02:43:42.814 JACK is starting...
> 02:43:42.814 jackd -R -dalsa -dhw:0 -r48000 -p1024 -n2
> 02:43:42.821 JACK was started with PID=19801 (0x4d59).
> jackd: symbol lookup error: jackd: undefined symbol:
> _jack_get_microseconds 02:43:42.822 JACK was stopped with exit status=127.
> 02:43:42.822 Post-shutdown script...
> 02:43:42.822 killall jackd
> jackd: no process killed
> 02:43:43.034 Post-shutdown script terminated with exit status=256.
> 02:43:44.860 Could not connect to JACK server as client. Please check
> the messages window for more info.
> jack_client_new: deprecated
> Cannot connect to server socket err = No such file or directory
> Cannot connect to server socket
> jack server is not running or cannot be started
>
> Any help with this would be appreciated.
>
> Thanks

Just a wild guess but you probably have jackd set up to run with 'real time'
priority. In order to do that you'll need to install a real-time kernel
first and then boot with that kernel. Otherwise change your jackd
configuration to NOT use real-time capabilities.... Also, you may need to
edit other variables as well...
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