我尝试通过关机按钮正确关闭 Xubuntu。但是，它只是进入黑屏，显示“Xubuntu”字样，并显示“等待状态停止/等待”，并且一整晚都停留在那里。
关闭它的唯一方法是拔掉插头或关闭电源开关。
这是 Xubuntu 的问题还是 BIOS 的问题？我正在运行 14.04.1。
我收到了这些消息：
* Stopping rsync deamon rsync
* speech-dispatcher disabled; edit /etc/default/speech-dispatcher
* Asking all remaining processes Xubuntu 14.04....
* All processes ended within 1 seconds...
ModemManager [1238] : <info> Caught . . . hutting down...
ModemManager[1238] : ModemManager is shut down.
nm-dispatcher.action: Could not get the system bus. Make sure the message ..
Please remove installation media and close the tray (if any) then press ENTER:
the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
* Unmounting temporary filesystems...
* Deactivating swap...
* Stopping early cyrpto disks...