jack off

Getting Stuff Done How do I .... ?
#1

i tried to plug in my fastrack pro and the whole thing went belly up. i open the qjack control and i got this…

15:37:06.991 Patchbay deactivated.
15:37:06.992 Statistics reset.
15:37:07.036 ALSA connection change.
15:37:07.620 D-BUS: Service is available (org.jackaudio.service aka jackdbus).
15:37:07.756 D-BUS: JACK server could not be started. Sorry
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
15:37:07.826 ALSA connection graph change.
(qjackctl:3061): Gtk-CRITICAL **: IA__gtk_widget_get_direction: assertion ‘GTK_IS_WIDGET (widget)’ failed
(qjackctl:3061): Gtk-CRITICAL **: IA__gtk_widget_get_direction: assertion ‘GTK_IS_WIDGET (widget)’ failed
Mon Mar 9 15:37:07 2015: Starting jack server…
Mon Mar 9 15:37:07 2015: JACK server starting in realtime mode with priority 10
Mon Mar 9 15:37:07 2015: ERROR: control open “/dev/audio” (No such file or directory)
Mon Mar 9 15:37:07 2015: ERROR: control open “/dev/audio” (No such file or directory)
Mon Mar 9 15:37:07 2015: creating alsa driver … /dev/audio|/dev/audio|1024|2|44100|1|0|nomon|swmeter|-|32bit
Mon Mar 9 15:37:07 2015: ERROR: control open “/dev/audio” (No such file or directory)
Mon Mar 9 15:37:07 2015: ERROR: ALSA: Cannot open PCM device alsa_pcm for playback. Falling back to capture-only mode
Mon Mar 9 15:37:07 2015: ERROR: Cannot initialize driver
Mon Mar 9 15:37:07 2015: ERROR: JackServer::Open failed with -1
Mon Mar 9 15:37:07 2015: ERROR: Failed to open server
Mon Mar 9 15:37:08 2015: Saving settings to “/home/francis/.config/jack/conf.xml” …
15:37:14.333 Could not connect to JACK server as client. - Overall operation failed. - Unable to connect to server. Please check the messages window for more info.
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started

now what is a newcomer supposed to do with this? does anyone even know what this means? all i want to do is connect a damn usb device, I dont want to infiltrate the north korean secret police.

#2

This has nothing directly to do with Ardour, but is related to your use of JACK. It appears that you tried to tell JACK to use "/dev/audio" which is completely non-sensical and probably caused by you reading some decade-old documentation on Linux audio. JACK does not use this name by default.

Normal names for the device given to JACK are (for example) "hw:0" or "hw:DAC" or "hw:DSP" or "hw:Fasttrack Pro". See this FAQ entry on how to use a persistent name for your device http://jackaudio.org/faq/device_naming.html

#3

thanks paul, let me change that and see what happens

#4

i changed it and you are right. BUT i think the error was coming from the fact that i had turned on ‘start jack as soon as program starts’. It didnt like this at all. thank you for your help

#5

@Dunnery

Well if the settings were wrong, which it sounds like they were, then yes starting Jack as soon as program starts would still cause errors once you started the program. The settings would be the main cause of the error, starting it when the program started just caused it to happen quicker.

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