No monitor image using docking station and Display Port
Product: EliteBook 840 GS
Operating System: Linux
My laptop (EliteBook 840 GS) which is connected to HP Ultraslim Docking Station, cannot display the image on external monitor connected to docking station's Display Port.
I am using Debian 9.9, and "Displays" window (Desktop -> RightClick -> Display settings) does show 2 display thumbnails. When I plug the same monitor directly to laptop's HDMI port, the picture is correctly displayed.