I have the following Setup which i can not get to work.
2 Monitors (same Size, 2560 x 1440 Pixels, I tried recuding the resolution to 1920*1080, which did not change anything) Connected to a Dell WD15 Docking Station using a mini Displayport to DisplayPort Cable and a HDMI Cable.
The dell WD15 is connected to my Notebook (Acer Aspire V Nitro (VN7-593G) with GeForce GTX 1060, Windows 10 latest, detailed specs here) using the USB-C connector.
The Laptop only detects the Monitor connected using the HDMI Cable, the other one is not detected in the settings of the PC.
I tried to find out if the Bottleneck of my setup is the Docking station or the Laptop itself. But i could not find much Information which matches my Setup.
Is it possible to support two Monitors with my Laptop, or is it a general Problem of my Notebook and has nothing to do with docking Station and Configuration
Best Answer
My understanding of the problem is that you are connecting the dock to a USB-C port, and therefore you are not going through the GTX 1060. You are instead using a display adapter that is built into the dock, which by its nature is a simple embedded adapter of limited capability, not at all in the same league as the GTX 1060.
I found a firmware update for the WD15 Docking Station at the Dell page of Support for Dell Dock WD15. You will find there a very recent firmware update from 23 Jan 2019. There are a couple of other fixes for audio problems, which might also apply.
If that firmware update allows the mini Displayport to be detected, then the problem might be solved.
If not, I suggest to avoid using the mini Displayport on the dock - use instead the HDMI port that is on your computer.