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dirty shrimp money
Jan 8, 2001



~Coxy posted:

I got a new laptop (Dell Precision 5510) so have started using the Lenovo USB-C dock instead of the good old physical ones. I had assumed that the dock would passthrough DisplayPort over USB-C so I would get native performance on my displays but I am having no end of trouble with lag and high CPU usage. I have updated the Lenovo drivers and the DisplayLink drivers to no avail.

I have two 1440p monitors plugged in to the dock. Unfortunately they don't have USB-C connections.

Is there anything to be done? Are these DisplayLink docks just crap?

You mention using a Lenovo dock, which one are you using?

I just spent a full month looking into this same issue with Lenovo's equivalent, P52. CDW sold me a 135W Thunderbolt 3 dock they swore would work on all Lenovo Thunderbolt 3 laptops, but my P52 users kept bugging techs about power issues and stuff not charging and peripherals dropping in and out. New drivers that came out in November didn't help.

Tons of searching later I found a 230W Lenovo "workstation" dock, which is actually a 295W dock because it comes with two AC adapters - one 230W power+Thunderbolt proprietary connector just for the laptop, and then a 65W that powers the dock and peripherals. Problem solved.

This won't help in your situation, but you might want to see if Dell has a similar fancy workstation dock with bigger AC adapters.

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dirty shrimp money
Jan 8, 2001



~Coxy posted:

It has a lightning bolt icon on the USB-C port. Does that positively indicate TB3 rather than merely USB-PD?

That seems to be the convention. I'm hoping stuff standardizes on TB3 soon enough because having TB3 be the same size and shape as USB-C is just confusing.

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