Precision Mobile Workstations

Last reply by 04-29-2022 Unsolved
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Dell Precision 5560 + WD19S 4 Monitors Not Working

Hi,

I'm trying to setup 4 monitors with my Dell Precision 5560 using a WD19S docking stations.  I'm following the external display connection guide , specifically the final example where the laptop display is disabled and 4 monitor are connected.  I followed the instructions to disable the laptop monitor and I've confirmed it isn't coming up.  3 monitors with and without laptop display do work.  However, as soon as I plug in the 4th monitor (into either the USB-C or HDMI port), the HDMI display drops out and I get a message in Windows from the Dell Power Manager shown below

dell_hdmi.png

When I reboot the computer, the BIOS also pops up the message below

IMG_20220429_140928_dell.jpg

In the intel graphics command center, I see this (1 is the laptop display, it's disabled)

connected_displays.png

Is there any way to get the 4th display up?  All drivers and firmware are up to date (including docking station).  My monitors are:

  • Asus VE278 (connected via DP)
  • Asus VE278 (connected via DP)
  • Dell U2415 (connected via USB-C to DP cable)
  • Dell E2420HS (connected via HDMI)

Thanks.

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