Results 1 to 4 of 4

Thread: Are you a JACK expert?

  1. #1
    Join Date
    Feb 2012
    Beans
    3

    Are you a JACK expert?

    Linux Mint 17.3/Ubuntu 14.04
    jack, jackd, QjackCtl, Qsynth installed.
    ASUS laptop

    I've been an Ubuntu/Mint user for several years and long ago gave up on Jack, could never get it to work. Today I tried again with this result: In QjackCtl/Setup/Interface when I click on the arrow there are 4 options : default; hd:HDMI; hd:Generic; hd:Generic,0 If I select either of the first two Jack won't open ("Could not connect to jack server as client"). If I select either of the other two it opens but when I click Start there's no sound. I've Googled till my eyes glazed over but although the world & his wife seem to have had similar problems with Jack nothing I've tried works. Usually with these things it's simple when you know how so I'm hoping someone will show me how to resolve this in a few seconds!
    Log shows this:

    Code:
    20:52:06.122 Patchbay deactivated.
    20:52:06.123 Statistics reset.
    20:52:06.152 ALSA connection change.
    20:52:06.173 D-BUS: Service not available (org.jackaudio.service aka jackdbus).
    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
    20:52:06.187 ALSA connection graph change.
    (qjackctl:5001): Gtk-CRITICAL **: IA__gtk_widget_get_direction: assertion 'GTK_IS_WIDGET (widget)' failed
    (qjackctl:5001): Gtk-CRITICAL **: IA__gtk_widget_get_direction: assertion 'GTK_IS_WIDGET (widget)' failed
    (qjackctl:5001): Gtk-CRITICAL **: IA__gtk_widget_get_direction: assertion 'GTK_IS_WIDGET (widget)' failed
    (qjackctl:5001): Gtk-CRITICAL **: IA__gtk_widget_get_direction: assertion 'GTK_IS_WIDGET (widget)' failed
    20:52:39.605 JACK is starting...
    20:52:39.606 /usr/bin/jackd -t200 -dalsa -dhw:0 -r44100 -p128 -n2
    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
    (qjackctl:5001): Gtk-CRITICAL **: IA__gtk_widget_get_direction: assertion 'GTK_IS_WIDGET (widget)' failed
    (qjackctl:5001): Gtk-CRITICAL **: IA__gtk_widget_get_direction: assertion 'GTK_IS_WIDGET (widget)' failed
    20:52:39.650 JACK was started with PID=5025.
    jackdmp 1.9.10
    Copyright 2001-2005 Paul Davis and others.
    Copyright 2004-2013 Grame.
    jackdmp 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 server starting in realtime mode with priority 10
    audio_reservation_init
    Acquire audio card Audio0
    creating alsa driver ... hw:0|hw:0|128|2|44100|0|0|nomon|swmeter|-|32bit
    ALSA: Cannot open PCM device alsa_pcm for playback. Falling back to capture-only mode
    Cannot initialize driver
    JackServer::Open failed with -1
    Failed to open server
    20:52:39.815 JACK was stopped with exit status=255.
    20:52:41.657 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

  2. #2
    Join Date
    Feb 2010
    Location
    South of the Maple Trees
    Beans
    Hidden!
    Distro
    Xubuntu 18.04 Bionic Beaver

    Re: Are you a JACK expert?

    I am not sure about Mint's support for that version, but 14.04 is no longer supported.
    Last edited by uRock; 3 Weeks Ago at 09:15 PM.

  3. #3
    Join Date
    Jun 2006
    Location
    UK
    Beans
    Hidden!
    Distro
    Ubuntu 18.04 Bionic Beaver

    Re: Are you a JACK expert?

    Thread moved to Mint sub-forum

    Both Mint 17.3 and Ubuntu 14.04 are now well past end-of-life, and are obsolete releases. You would be better advised to install a currently supported operating system before trying to troubleshoot jack problems.

    Edit: Note - simultaneous staff action.
    Ubuntu 16.04 Desktop Guide - Ubuntu 18.04 Desktop Guide - Forum Guide to BBCode - Using BBCode code tags - IRC #ubuntuforums

    Member: Not Canonical Team

    Please do not PM me about your forum account unless you have been asked to. The correct place to contact an admin about your account is here.

  4. #4
    Join Date
    Feb 2012
    Beans
    3

    Re: Are you a JACK expert?

    Upgraded to 18.3, Jack still doesn't like default or hd:HDMI but anything else starts Jack & has sound, but connections tab is virtually empty in Audio, MIDI, & ALSA, so as a Jack noob I have no idea how to proceed.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •