qJackCtl was running perfectly, but after trying to change the Output Device/Input Device settings, It does no longer connects to the server
The Output and Input Device settings by default they had the word "(default)". So after trying change them I've re-entered this word "(default)".
(from the drop-down menu of the parameter it was never possible to select anything, there were never any suggestions)
Now when I open qJackCtl I've got these messages:
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22:23:39.381 Statistics reset.
22:23:39.388 D-BUS: Service is 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
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
"D-BUS: Jack Server could not be started
sorry"
"Could not connect to JACK server as client.
-overall operation failed.
-unable to connect to server
please check message window for more info"
and below message window messages:
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Fri Jan 22 22:31:22 2021: Starting jack server...
Fri Jan 22 22:31:22 2021: JACK server starting in realtime mode with priority 10
Fri Jan 22 22:31:22 2021: self-connect-mode is "Don't restrict self connect requests"
Fri Jan 22 22:31:22 2021: ERROR: Cannot lock down 82280346 byte memory area (Cannot allocate memory)
Fri Jan 22 22:31:22 2021: Acquired audio card Audio0
Fri Jan 22 22:31:22 2021: creating alsa driver ... hw:0|hw:0|1024|2|44100|0|0|nomon|swmeter|-|32bit
Fri Jan 22 22:31:22 2021: ERROR: ALSA: Cannot open PCM device alsa_pcm for playback. Falling back to capture-only mode
Fri Jan 22 22:31:22 2021: Released audio card Audio0
Fri Jan 22 22:31:22 2021: ERROR: Cannot initialize driver
Fri Jan 22 22:31:22 2021: ERROR: JackServer::Open failed with -1
Fri Jan 22 22:31:22 2021: ERROR: Failed to open server
Fri Jan 22 22:31:24 2021: Saving settings to "/home/tabache/.config/jack/conf.xml" ...
22:32:33.690 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
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock