Estou tentando iniciar o jackd usando o QJackCtl, mas ele falha com mensagens de erro Aqui está o que estou vendo -
14:36:48.194 Patchbay deactivated.
14:36:48.198 Statistics reset.
14:36:48.228 ALSA connection change.
14:36:48.241 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 socket
jack server is not running or cannot be started
Registered event listener change listener: true
14:36:48.258 ALSA connection graph change.
14:37:12.679 D-BUS: JACK server could not be started. Sorry
Cannot connect to server socket err = No such file or directory
Cannot connect to server socket
jack server is not running or cannot be started
QSpiAccessible::accessibleEvent not handled: "2" obj: QMessageBox(0xbfd7c2d0) ""
FIXME: handle dialog start.
Sat Feb 2 14:37:12 2013: Starting jack server...
Sat Feb 2 14:37:12 2013: JACK server starting in realtime mode with priority 10
Sat Feb 2 14:37:12 2013: [1m[31mERROR: Cannot lock down 82241434 byte memory area (Cannot allocate memory)[0m
Sat Feb 2 14:37:12 2013: control device hw:0
Sat Feb 2 14:37:12 2013: control device hw:0
Sat Feb 2 14:37:12 2013: [1m[31mERROR: Failed to acquire device name : Audio0 error : Cannot allocate memory[0m
Sat Feb 2 14:37:12 2013: [1m[31mERROR: Audio device hw:0 cannot be acquired...[0m
Sat Feb 2 14:37:12 2013: [1m[31mERROR: Cannot initialize driver[0m
Sat Feb 2 14:37:12 2013: [1m[31mERROR: JackServer::Open() failed with -1[0m
Sat Feb 2 14:37:12 2013: [1m[31mERROR: Failed to open server[0m
Sat Feb 2 14:37:13 2013: Saving settings to "/home/soham/.config/jack/conf.xml" ...
FIXME: handle dialog end.
14:37:17.923 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 socket
jack server is not running or cannot be started
QSpiAccessible::accessibleEvent not handled: "2" obj: QMessageBox(0xbfd7cb40) ""
FIXME: handle dialog start.
FIXME: handle dialog end.
QSpiAccessible::accessibleEvent not handled: "6" obj: QMenu(0x8d0f0a0) ""
Nota: Se eu reiniciar minha máquina, o "Jack" começará a funcionar novamente até que eu toque algo, como filmes ou músicas, etc., usando vlc ou qualquer outro media player.
Eu sou novo, mas tentarei responder sua pergunta. Parece que você pode estar passando por algo semelhante ao meu próprio calvário. Tente isso no terminal. Aqui está o código.
pulseaudio --kill
início do jack_control.
Então, quando você terminar com o Jack, faça isso. Aqui está o código.
saída jack_control
pulseaudio --start.
Espero que isso ajude.