I have a DELL dock WD15 user guide (pdf) (Thunderbolt via USB-C) and it's frustrating to use, because it only supports 4k@30 Hz due to only having two allocated DP lanes.

I was wondering if it is possible by any means to increase the refresh rate to 60 Hz?

What came across my mind was to disable all other connectors which I don't use anyway and use the vacated lanes for DP, but is that even possible? I can imagine it may require a custom driver or firmware...

dell dock wd15

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