Docking Station not Detecting 2nd external Monitor

Question

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

Solution

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.

Comments

[PoutchiPatch]

Could you provide with the exact reference of the computer? Can't seem to find it with a GTX 1060

[harrymc]

Do you have 60 Hz in Settings > System > Display > Advanced display settings > Display adapter properties > Monitor > Monitor Settings > Screen refresh rate? And what's the resolution of both monitors?

[harrymc]

Also the specs say GeForce® GTX 960M with max Screen Resolution of 1920x1080, which is certainly not enough for two monitors.

[quadroid]

@PoutchiPatch, I added the exact specs.

[quadroid]

@harrymc. The Refresh rate is set to 60hz

[quadroid]

Actually the Update does not work on a non Dell Computer, but connecting the 2nd Monitor over the Laptop HDMI Port does give me the expected result.