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 4294967295, skipping unlock JackShmReadWritePtr::~JackShmReadWritePtr – Init not done for 4294967295, skipping unlock Cannot connect to server socket err = No such file or directory apt-get install qjackctl