Maximum total monitor(s) resolutions? Precision 7550/WD19DCS

Question

Hello, I have a Dell Precision 7550 running Windows 10 connected to a WD19DCS dock. Overall it performs well. Currently I have 3 monitors connected to the dock (the dock has 2 DisplayPort and 1 HDMI port): HDMI: 1920 x 1200 DP1: 2560 x 1440 DP2: 2560 x 1440   WalMart has a sale on a nice ultra wide QHD monitor at 3440 x 1440, so I thought I'd get that to maximize the screen space so I bough the monitor. Here's what I want to have: (1) HDMI: 2560 x 1440 (2) DP1: 3440 x 1440 (3) DP2: 2560 x 1440 But when I connect them, the large monitor (2) is forced to a maximum resolution of 2560 x 1080. I tried moving the monitors around to the different ports, and the result is always the same - one of the monitor resolutions gets derated. Does anyone know if this is a limitation of the docking station? Or of the laptop? Any workarounds available?  If not, is there maybe a better docking station I can get to achieve my maximum tricked-out monitors? Where can I find out the limits of monitors and resolutions? Thanks in advance for the  help. -- Steven

Chino de Oro · Answer

According to the docking station specs, maximum resolution for using triple display is x3 QHD (2560 x 1440) @ 60Hz with HBR3 Displayport bandwidth.  So ultra wide monitor is a no go.

stevenc88 · Answer

Thanks for the update and spec references.

Precision Mobile Workstations

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