Ok, entendi: eu tive que me adicionar ao grupo audio :
usermod -a -G audio theusername
A participação no grupo só é atualizada no login, então você precisa sair e entrar novamente (ou apenas reinicializar) .
Eu quero usar o PulseAudio no topo da tomada, então desliguei o pulso e agora deseja iniciar o jack usando qjackctl . No entanto, isso resulta no seguinte log de erros:
22:14:15.933 Patch Panel disabled
22:14:15.940 Reset statistics.
22:14:15.953 Changed ASLA connection.
22:14:15.970 D-BUS: Service available (org.jackaudio.service aka jackdbus).
Cannot connect to server socket err = File or directory not found
Cannot connect to server socket
jack server is not running or cannot be started
22:14:15.980 Updated visualization of ASLA connections
22:14:18.147 D-BUS: Unable to start JACK server
Cannot connect to server socket err = File or directory not found
Cannot connect to server socket
jack server is not running or cannot be started
Fri Jul 20 22:14:18 2012: Starting jack server...
Fri Jul 20 22:14:18 2012: JACK server starting in realtime mode with priority 10
Fri Jul 20 22:14:18 2012: [1m[31mERROR: Cannot lock down 82246176 byte memory area (Cannot allocate memory)[0m
Fri Jul 20 22:14:18 2012: control device hw:0
Fri Jul 20 22:14:18 2012: control device hw:0
Fri Jul 20 22:14:18 2012: [1m[31mERROR: Failed to acquire device name : Audio0 error : Cannot allocate memory[0m
Fri Jul 20 22:14:18 2012: [1m[31mERROR: Audio device hw:0 cannot be acquired...[0m
Fri Jul 20 22:14:18 2012: [1m[31mERROR: Cannot initialize driver[0m
Fri Jul 20 22:14:18 2012: [1m[31mERROR: JackServer::Open() failed with -1[0m
Fri Jul 20 22:14:18 2012: [1m[31mERROR: Failed to open server[0m
Fri Jul 20 22:14:19 2012: Saving settings to "/home/jan/.config/jack/conf.xml" ...
22:14:24.418 Cannot connect to JACK server as client - connection failed. See message dialog for details.
Cannot connect to server socket err = File or directory not found
Cannot connect to server socket
jack server is not running or cannot be started
(Várias mensagens foram em alemão, fiz o melhor para traduzi-las)
O processo pulseaudio definitivamente não está em execução.
Eu uso o Ubuntu 12.04 de 64 bits com uma placa de áudio NVIDIA.
Ok, entendi: eu tive que me adicionar ao grupo audio :
usermod -a -G audio theusername
A participação no grupo só é atualizada no login, então você precisa sair e entrar novamente (ou apenas reinicializar) .
Tags jack