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December 3rd, 2023 15:21

Can't set maximum UHD screen resolution when using WD19S dock

I have a Dell XPS 15 7590 laptop which when connected directly to my Lenovo UHD monitor using the HDMI port allows me to use the full 3840 x 2160 resolution. However, when I try to connect the monitor via my WD19S USB-C dock, using either HDMI or Display Port, the screen resolution is only 1920 x 1080 and the options in the Display Settings control panel for changing the resolution or orientation are greyed out. I've tried updating the firmware on the laptop and the dock, and also installed the monitor driver from Lenovo. What's the solution to this problem?

10 Elder

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22.5K Posts

December 3rd, 2023 15:57

Are you using the Thunderbolt port for the dock (not the USB 3.1 ports)?  

5 Practitioner

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4.1K Posts

December 3rd, 2023 16:26

Here is the WD19 User Guide with display resolution table.  The display port available bandwidth determines the maximum resolution for monitor(s) being used.

December 3rd, 2023 21:50

@ejn63​ I think I made a mistake in my original post, I believe my dock is WD19S not WD19 as I said. I am using the USB-C port to connect it to my laptop. Sorry, I'm not an expert with all this, and I didn't buy the dock it was supplied by my previous employer.

December 3rd, 2023 21:56

@Chino de Oro​ I think I made a mistake in my original post, I believe my dock is WD19S not WD19 as I said. I am using the USB-C port to connect it to my laptop. It has 2 DP and 1 HDMI port and I'm only trying to connect one monitor. The table you pointed me to suggests I should be able to get 3840 x 2160 @ 30Hz using either DP or HDMI but neither give me greater than 1920 x 1080.

5 Practitioner

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4.1K Posts

December 4th, 2023 03:19

Same thing with WD19S docking station, you would get a 4K display @ 30Hz or a 4K display @ 60Hz with display stream compression.

With a single monitor setup, you should get 4K resolution with either HDMI or Display Port cable connection.  Be sure to power on the monitor first before boot up your laptop so it can sense the monitor's EDID resolution.  Sometimes, high quality cable does have an impact on achieving the native resolution.  Avoid using any converter adapter in the connection.   

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