How to use high (4K) resolutions with older hardware

This is a good reference to mode lines. Thanks very much. I recall long ago when it was more common to configure these on Linux. I’m wondering what I can drive from my Laptops mini display port. I currently have 2 display ports from the docking station driving two monitors at 1920x1080. There is a miniDP which I know also works. Thinking about trying one of these 2 port MST mini DP hubs to see if I can drive 2 more DP monitors at 1920x1080. However I read elsewhere that

DispalyPort :

Intel HD4000 Max Pixel Clock supported on DisplayPort is 348 Mhz

Which would lead one to believe I will not be able to do it.

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