Real-time displays now operational at Greystones Station
 

Finally Irishrail have adressed this issue, something I have complained about since 2005.

With those displays having been there since the DART extension to Greystones, there's really no excuse they couldn't have sorted them out earlier.

However I would like to commend Irishrail for eventually getting around to it!

That explains why the entire system crashed on Monday morning...