New Dell XPS Laptop (Windows 10), new Dell Ultra High Res Screen, new Pluggable docking station.
I set it all up and it worked (Screen, Hard Drives, Ethernet, Printer etc). The screen was via HDMI (perfect as speakers plugged into the screen ).
So it was all working for 3 days, then suddenly blank screen.
I have tried changing the HDMI cable, tried different inputs on screen, checked all latest drivers, nothing, tried extended v duplicate etc… Plugged in a DVI to HDMI cable and it works (but of course no audio) - my screen only has HDMI, mDP & DP.
So I can not get the HDMI to HDMI cable from the docking station to work even though it did for 3 days! I am reasonably technical, but can’t find the issue.
Help! Any ideas very welcome before I return the docking station - many thanks.