Topic: Jack not starting (no connection as client to Jack-Server)

Hi,

since I updated from Ubuntu 18.04. to Ubunto 20.04, I somehow can't get Jack to run.

I have already uninstalled all applications (are there further applications i should uninstall)

sudo apt-get remove libffado2 ffado-tools ffado-mixer-qt4 jackd jackd2 jackd2-firewire

Then i installed everything with

sudo apt-get install libffado2 ffado-tools ffado-mixer-qt4 jackd jackd2 jackd2-firewire

But as soon as I try to start Jack the following messages appear

19:30:23.423 Statistik zurückgesetzt.
19:30:23.428 ALSA-Verbindung geändert.
19:30:23.430 D-BUS: Dienst ist verfügbar (org.jackaudio.service aka jackdbus).
Cannot connect to server socket err = Datei oder Verzeichnis nicht gefunden
Cannot connect to server request channel
jack server is not running or cannot be started
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
19:30:23.460 Schaubild der ALSA-Verbindungen geändert.
19:30:43.067 D-BUS: JACK-Server konnte nicht gestartet werden. Tut mir Leid
Cannot connect to server socket err = Datei oder Verzeichnis nicht gefunden
Cannot connect to server request channel
jack server is not running or cannot be started
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
Sat Nov 21 19:30:42 2020: Starting jack server...
Sat Nov 21 19:30:42 2020: JACK server starting in realtime mode with priority 10
Sat Nov 21 19:30:42 2020: self-connect-mode is "Don't restrict self connect requests"
Sat Nov 21 19:30:43 2020: ERROR: firewire ERR: Could not prepare streaming device!
Sat Nov 21 19:30:43 2020: ERROR: Cannot attach audio driver
Sat Nov 21 19:30:43 2020: ERROR: JackServer::Open failed with -1
Sat Nov 21 19:30:43 2020: ERROR: Failed to open server
Sat Nov 21 19:30:43 2020: ERROR: Segmentation Fault!
Sat Nov 21 19:30:43 2020: ERROR: Segmentation Fault!
Sat Nov 21 19:30:43 2020: ERROR: info.si_signo = 11
Sat Nov 21 19:30:43 2020: ERROR: info.si_signo = 11
Sat Nov 21 19:30:43 2020: ERROR: info.si_errno = 0
Sat Nov 21 19:30:43 2020: ERROR: info.si_errno = 0
Sat Nov 21 19:30:43 2020: ERROR: info.si_code  = 1 (SEGV_MAPERR)
Sat Nov 21 19:30:43 2020: ERROR: info.si_code  = 1 (SEGV_MAPERR)
Sat Nov 21 19:30:43 2020: ERROR: info.si_addr  = 0x7f521f7719ea
Sat Nov 21 19:30:43 2020: ERROR: info.si_addr  = 0x7f521f7719ea
Sat Nov 21 19:30:43 2020: ERROR: reg[00]       = 0x0000000000000000
Sat Nov 21 19:30:43 2020: ERROR: reg[00]       = 0x0000000000000000
Sat Nov 21 19:30:43 2020: ERROR: reg[01]       = 0x00007f521f8633e4
Sat Nov 21 19:30:43 2020: ERROR: reg[01]       = 0x00007f521f8633e4
Sat Nov 21 19:30:43 2020: ERROR: reg[02]       = 0x0000000000000000
Sat Nov 21 19:30:43 2020: ERROR: reg[02]       = 0x0000000000000000
Sat Nov 21 19:30:43 2020: ERROR: reg[03]       = 0x0000000000000000
Sat Nov 21 19:30:43 2020: ERROR: reg[03]       = 0x0000000000000000
Sat Nov 21 19:30:43 2020: ERROR: reg[04]       = 0x0000555eefe73d20
Sat Nov 21 19:30:43 2020: ERROR: reg[04]       = 0x0000555eefe73e80
Sat Nov 21 19:30:43 2020: ERROR: reg[05]       = 0x00007f521f8e1ce0
Sat Nov 21 19:30:43 2020: ERROR: reg[05]       = 0x00007f521f8e1ce0
Sat Nov 21 19:30:43 2020: ERROR: reg[06]       = 0x00007f521f866348
Sat Nov 21 19:30:43 2020: ERROR: reg[06]       = 0x00007f521f865ecc
Sat Nov 21 19:30:43 2020: ERROR: reg[07]       = 0x0000000000000000
Sat Nov 21 19:30:43 2020: ERROR: reg[07]       = 0x0000000000000000
Sat Nov 21 19:30:43 2020: ERROR: reg[08]       = 0x0000000000000000
Sat Nov 21 19:30:43 2020: ERROR: reg[08]       = 0x0000000000000000
Sat Nov 21 19:30:43 2020: ERROR: reg[09]       = 0x0000000000000000
Sat Nov 21 19:30:43 2020: ERROR: reg[09]       = 0x0000000000000000
Sat Nov 21 19:30:43 2020: ERROR: reg[10]       = 0x00007f520fffee70
Sat Nov 21 19:30:43 2020: ERROR: reg[10]       = 0x00007f521491ee70
Sat Nov 21 19:30:43 2020: ERROR: reg[11]       = 0x0000555eefe73d20
Sat Nov 21 19:30:43 2020: ERROR: reg[11]       = 0x0000555eefe73e80
Sat Nov 21 19:30:43 2020: ERROR: reg[12]       = 0x0000000000000000
Sat Nov 21 19:30:43 2020: ERROR: reg[12]       = 0x0000000000000000
Sat Nov 21 19:30:43 2020: ERROR: reg[13]       = 0x0000000000000000
Sat Nov 21 19:30:43 2020: ERROR: reg[13]       = 0x0000000000000000
Sat Nov 21 19:30:43 2020: ERROR: reg[14]       = 0x00007f5220eea3bf
Sat Nov 21 19:30:43 2020: ERROR: reg[14]       = 0x00007f5220eea3bf
Sat Nov 21 19:30:43 2020: ERROR: reg[15]       = 0x00007f520fffeda0
Sat Nov 21 19:30:43 2020: ERROR: reg[15]       = 0x00007f521491eda0
Sat Nov 21 19:30:43 2020: ERROR: reg[16]       = 0x00007f521f7719ea
Sat Nov 21 19:30:43 2020: ERROR: reg[16]       = 0x00007f521f7719ea
Sat Nov 21 19:30:43 2020: ERROR: reg[17]       = 0x0000000000010202
Sat Nov 21 19:30:43 2020: ERROR: reg[17]       = 0x0000000000010202
Sat Nov 21 19:30:43 2020: ERROR: reg[18]       = 0x002b000000000033
Sat Nov 21 19:30:43 2020: ERROR: reg[18]       = 0x002b000000000033
Sat Nov 21 19:30:43 2020: ERROR: reg[19]       = 0x0000000000000014
Sat Nov 21 19:30:43 2020: ERROR: reg[19]       = 0x0000000000000014
Sat Nov 21 19:30:43 2020: ERROR: reg[20]       = 0x000000000000000e
Sat Nov 21 19:30:43 2020: ERROR: reg[20]       = 0x000000000000000e
Sat Nov 21 19:30:43 2020: ERROR: reg[21]       = 0x0000000000005a07
Sat Nov 21 19:30:43 2020: ERROR: reg[21]       = 0x0000000000005a07
Sat Nov 21 19:30:43 2020: ERROR: reg[22]       = 0x00007f521f7719ea
Sat Nov 21 19:30:43 2020: ERROR: reg[22]       = 0x00007f521f7719ea
Sat Nov 21 19:30:43 2020: ERROR: Stack trace:
Sat Nov 21 19:30:43 2020: ERROR: Stack trace:
Sat Nov 21 19:30:43 2020: ERROR: End of stack trace
Sat Nov 21 19:30:43 2020: ERROR: End of stack trace
Sat Nov 21 19:30:43 2020: ------------------
Sat Nov 21 19:30:43 2020: Controller activated. Version 1.9.12 (unknown) built on Thu Apr 16 10:21:43 2020
Sat Nov 21 19:30:43 2020: Loading settings from "/home/basementmedia/.config/jack/conf.xml" using expat_2.2.9 ...
Sat Nov 21 19:30:43 2020: setting parameter 'engine':'driver':'(null)' to value "alsa"
Sat Nov 21 19:30:43 2020: setting parameter 'engine':'realtime':'(null)' to value "true"
Sat Nov 21 19:30:43 2020: setting parameter 'engine':'verbose':'(null)' to value "false"
Sat Nov 21 19:30:43 2020: setting parameter 'engine':'client-timeout':'(null)' to value "500"
Sat Nov 21 19:30:43 2020: setting parameter 'drivers':'firewire':'rate' to value "44100"
Sat Nov 21 19:30:43 2020: setting parameter 'drivers':'firewire':'capture' to value "true"
Sat Nov 21 19:30:43 2020: setting parameter 'drivers':'firewire':'playback' to value "true"
Sat Nov 21 19:30:43 2020: setting parameter 'drivers':'firewire':'inchannels' to value "16"
Sat Nov 21 19:30:43 2020: setting parameter 'drivers':'firewire':'outchannels' to value "16"
Sat Nov 21 19:30:43 2020: setting parameter 'drivers':'alsa':'device' to value "hw:0"
Sat Nov 21 19:30:43 2020: setting parameter 'drivers':'alsa':'capture' to value "hw:0"
Sat Nov 21 19:30:43 2020: setting parameter 'drivers':'alsa':'playback' to value "hw:0"
Sat Nov 21 19:30:43 2020: setting parameter 'drivers':'alsa':'rate' to value "44100"
Sat Nov 21 19:30:43 2020: setting parameter 'drivers':'alsa':'period' to value "1024"
Sat Nov 21 19:30:43 2020: setting parameter 'drivers':'alsa':'nperiods' to value "2"
Sat Nov 21 19:30:43 2020: setting parameter 'drivers':'alsa':'hwmon' to value "false"
Sat Nov 21 19:30:43 2020: setting parameter 'drivers':'alsa':'hwmeter' to value "false"
Sat Nov 21 19:30:43 2020: setting parameter 'drivers':'alsa':'duplex' to value "true"
Sat Nov 21 19:30:43 2020: setting parameter 'drivers':'alsa':'softmode' to value "false"
Sat Nov 21 19:30:43 2020: setting parameter 'drivers':'alsa':'monitor' to value "false"
Sat Nov 21 19:30:43 2020: setting parameter 'drivers':'alsa':'dither' to value "n"
Sat Nov 21 19:30:43 2020: setting parameter 'drivers':'alsa':'inchannels' to value "2"
Sat Nov 21 19:30:43 2020: setting parameter 'drivers':'alsa':'outchannels' to value "2"
Sat Nov 21 19:30:43 2020: setting parameter 'drivers':'alsa':'shorts' to value "false"
Sat Nov 21 19:30:43 2020: setting parameter 'drivers':'netone':'rate' to value "44100"
Sat Nov 21 19:30:43 2020: setting parameter 'drivers':'dummy':'rate' to value "44100"
Sat Nov 21 19:30:43 2020: Listening for D-Bus messages
19:30:45.106 Keine Verbindungsaufnahme als Client zum JACK-Server möglich. - Gesamtbetrieb schlug fehl. - Verbindungsaufnahme zum Server gescheitert. Bitte sehen Sie im Meldungsfenster nach weiteren Informationen.
Cannot connect to server socket err = Datei oder Verzeichnis nicht gefunden
Cannot connect to server request channel
jack server is not running or cannot be started
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock

I have no idea what else I could try and hope for your help ;-(

Best regards
Daniel

By the way: I am from germany, so you can also answer in german ;-)