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

  • Could you provide with the exact reference of the computer? Can't seem to find it with a GTX 1060 – PoutchiPatch Mar 3 '19 at 11:09
  • 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 Mar 3 '19 at 11:18
  • Also the specs say GeForce® GTX 960M with max Screen Resolution of 1920x1080, which is certainly not enough for two monitors. – harrymc Mar 3 '19 at 11:23
  • @PoutchiPatch, I added the exact specs. – console Mar 3 '19 at 16:04
  • @harrymc. The Refresh rate is set to 60hz – console Mar 3 '19 at 16:04

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.

  • 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. – console Mar 4 '19 at 9:54

Go to Control Panel>Power Options and edit your plan options for Laptop Lid Close action and see if it changes the behaviour when you are hot docking.

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