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打开的列表显示

tag-icon • tag-icon shell
打开的列表显示

我想检查监视器是否打开，以便我可以将输出切换到它。

xrandr --query

将显示所有连接的显示器，无论它们是否打开

xrandr --listmonitors

只会列出正在显示某些内容的监视器。

答案1

https://stackoverflow.com/questions/3433203/how-to-define-if-lcd-monitor-is-turned-on-from-linux-command-line找到shell脚本代码来检查，啦：

#!/bin/bash export DISPLAY=:0.0

 if [ $# -eq 0 ]; then   
 echo usage: $(basename $0) "on|off|status"    
 exit 1  
fi  

 if [ $1 = "off" ]; then   
  echo -en "Turning monitor off..."   
  xset dpms force off   
  echo -en "done.\nCheck:"  
  xset -q|grep "Monitor is"  

 elif [ $1 = "on" ]; then   
 echo -en "Turning monitor on..."
 xset dpms force on   
 echo -en "done.\nCheck:"   
 xset -q|grep "Monitor is"  

 elif [ $1 = "status" ]; then   
 xset -q|sed -ne 's/^[ ]*Monitor is //p' 

 else    
 echo usage: $(basename $0) "on|off|status"   

 fi

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