I have long searched for a configuration (Linux laptop + docking station) that can drive a triple monitor setup. Ideally all three at 4K@60 Hz but I might settle for one of them being QHD (2560 x 1440). Why isn't there any confirmed options? Or is that the limitations of Thunderbolt?
> Thunderbolt 3 allows the connection of two 4K monitors, one 5K, or one 4K at 120 Hz per port. Thunderbolt 4 supports the same number of displays as Thunderbolt 3, while adding support for resolutions up to 8K.
So bandwithwise you probably need at least thunderbolt 4 (8k=4* 4k) and then not at 120Hz. Also even if the docking station can manage this, it is not clear whether your graphics card is able to, e.g. see
What might be possible is one docking station with two 4k@60Hz screens (many options) and then connecting a third screen to the laptop's HDMI port (if it has one).
I think that might be passed the capabilities of what DisplayPort can push, so it would be passed what USB-3 alt-mode can do, because that uses DisplayPort. I am not sure if thunderbolt adds extra capabilities here.
