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0 pointsswaranga3y ago0 comments

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?

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diffeomorphism3y ago

That does not seems feasible, e.g. see

https://www.datapro.net/techinfo/thunderbolt_info.html#q3

> 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

https://www.intel.com/content/www/us/en/support/articles/000...

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).

rocqua3y ago

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.

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