问[Pyo/Jackd/PulseAudio]：Jack错误: Unabel创建JACK客户端(CromeOS/CROUTON/精确)

EN

>>>import pyo
pyo version 0.7.7 (uses single precision)
>>>pyo.Server(audio='jack').boot()

FATAL: cannot locate cpu MHz in /proc/cpuinfo

Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jackdmp 1.9.11
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2015 Grame.
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
/usr/local/bin/jackd: symbol lookup error: /usr/local/bin/jackd: undefined symbol: jackctl_driver_params_parse
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
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
Jack error: Unable to create JACK client
jack_client_close called with a NULL client

Server not booted.
<pyolib.server.Server object at 0x1671150>

>pulseaudio --start

E: [pulseaudio] main.c: Daemon startup failed.

>pulseaudio --kill

E: [pulseaudio] main.c: Failed to kill daemon: No such process

>sudo pulseaudio --kill

E: [pulseaudio] core-util.c: Home directory /home/USERNAME not ours. 
E: [pulseaudio] main.c: Failed to kill daemon: Permission denied

>jack_control start

Traceback (most recent call last):
  File "/usr/local/bin/jack_control", line 399, in <module>
    main()
  File "/usr/local/bin/jack_control", line 158, in main
    bus = dbus.SessionBus()
  File "/usr/lib/python2.7/dist-packages/dbus/_dbus.py", line 211, in __new__ 
    mainloop=mainloop)
  File "/usr/lib/python2.7/dist-packages/dbus/_dbus.py", line 100, in __new__
    bus = BusConnection.__new__(subclass, bus_type, mainloop=mainloop)
  File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 122, in __new__
    bus = cls._new_for_bus(address_or_type, mainloop=mainloop)
  dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NotSupported: Unable to autolaunch a dbus-daemon without a $DISPLAY for X11