乌班图系统在自动重启后经常出现黑屏啊，跪求大神解答。

设置的自动重启，经常在重启时出现黑屏，跪求大神帮助指导啊啊啊啊啊。
monitorThread::onTimerSendMsg: Nothing need to send
tcpSecondConnection onHeatBeatTimeout connectionStatus: 1
tcpSecondConnection:connectionStatus: 1
TcpSecondConnection Send Data: "HEAD=000022#|0#|HEARTBEAT#|"
QSoundEffect(pulseaudio): Error in pulse audio stream
The X11 connection broke (error 1). Did the X11 server die?