I have an old dell xps 15 9550. I have it connected to 2 external monitors, a samsung 32' 4k monitor and an asus 24' 1920x1200 monitor. I use it plugged in almost always. For the last few months ...
I have just returned home and my ASUS ProArt monitor (PA248Q, bought in Sept. 2013) will not power on. When I first came home, the power button had a purple light showing and there was no response ...