问题描述
jackdmp 1.9.12
copyright 2001-2005 Paul Davis and others.
copyright 2004-2016 Grame.
copyright 2016-2017 Filipe Coelho.
jackdmp comes with ABSOLUTELY NO WARRANTY
This is free software,and you are welcome to redistribute it
under certain conditions; see the file copYING for details
no message buffer overruns
no message buffer overruns
no message buffer overruns
JACK server starting in realtime mode with priority 10
self-connect-mode is "Don't restrict self connect requests"
Failed to connect to session bus for device reservation: /usr/bin/dbus-launch terminated abnormally with the following error: Autolaunch error: X11 initialization Failed.
To bypass device reservation via session bus,set JACK_NO_AUdio_RESERVATION=1 prior to starting jackd.
Audio device hw:0 cannot be acquired...
Cannot initialize driver
JackServer::Open Failed with -1
Failed to open server
我尝试在 Ubuntu 20.04 的虚拟机（Virtual Box）上建立一个没有声卡的 JACK 应用程序。我使用命令行“sudo jackd -d alsa”。然后，上面的msg显示了命令使用后的错误。
为什么会出现这个错误？
解决方法
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