jack server is not running or cannot be started

[brylie]

When starting JamTaba without JACK already running, the UI loads successfully but does not seem to broadcast my local audio. I see the following messages directly after running JamTaba:

./Jamtaba2
default.INFO      [02:53:23:719] JamTaba Base dir: "/home/brylie/.local/share/JamTaba 2" [, line 0]
default.CRITICAL  [02:53:23:783] Can't open the file  "country_codes_cache.bin" [, line 0]
default.CRITICAL  [02:53:23:783] Can't open the file  "lat_long_cache.bin" [, line 0]
default.CRITICAL  [02:53:23:783] Can't open the file  "country_names_cache_en.bin" [, line 0]
ALSA lib pcm.c:2564:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2564:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2564:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib pcm_route.c:869:(find_matching_chmap) Found no matching channel map
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
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
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
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
ALSA lib pcm_oss.c:377:(_snd_pcm_oss_open) Unknown field port
ALSA lib pcm_oss.c:377:(_snd_pcm_oss_open) Unknown field port
ALSA lib pcm_usb_stream.c:486:(_snd_pcm_usb_stream_open) Invalid type for card
ALSA lib pcm_usb_stream.c:486:(_snd_pcm_usb_stream_open) Invalid type for card
default.INFO      [02:53:24:387] "Starting Jamtaba 2.1.8 Standalone (x86_64) running on Ubuntu 19.10 (x86_64)" [, line 0]

[alectrocute]

Please include specifics like your platform and device specs.

[brylie]

At the time of this report, I was running on Ubuntu 19.10. What other device specs would be useful?

[jonjamcam]

Hi @brylie . This post is six months old referring to an outdated version. Please install latest version.

[brylie]

I am still experiencing a related issue on Ubuntu 20.04. I can start JamTaba while JACK is running, but it doesn't seem to register itself in the JACK routing matrix. #1400