From: rich@example.invalid   
      
   S.K.R. de Jong  wrote:   
   >        I frequently connect over VNC to a system running Slackware 14.2   
   > where an X windows session is running on a monitor connected over   
   > DisplayPort to that system.   
   >   
   >        Without being physically there, would it be possible to detect,   
   > from the 14.2 command line, whether or not the monitor is turned on? I   
   > have done an online search for solutions and came across a number of   
   > things that seem to work for some people under Red Hat or Ubuntu - but   
   > have yet to find anything that works under Slackware.   
      
   Provided you have the DISPLAY variable set to point at the remote X   
   server, then it is possible that "xset q" will tell you what you want.   
      
   One of the things that it returns is:   
      
      DPMS (Energy Star):   
        Standby: 600    Suspend: 600    Off: 600   
        DPMS is Enabled   
        Monitor is On   
      
   Note the "Monitor is On" line.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)