2 x 4k 144hz Monitors from Laptop

[zedx19]

Struggling to figure out why this isn't working, when from the Googling I've done, suggests it should.

Dell XPS 9500, i7-10750H, 32gb ram, Intel UHD Graphics, Nvidia Geforce GTX 1650TI Graphics, this is connected to a Dell WD19TB dock and 180w power supply, all good so far. I did have 2 x 1080p 60hz Dell Monitors + the laptop screen on, worked fine for 2 years but I thought I'd upgrade to 27" 4k 144hz monitors. However when I've plugged these in, they are at the correct resolution of 2560 x 1440 but the refresh rate options are 59.95hz or 60hz only? The monitors are connected to the dock via Displayport cables, which came with the new monitors. The dock is connected to the laptop via the Thunderbolt port.

Google suggests the dock should be able to handle it, as should the laptop, any ideas why I can't get 144hz?

[zedx19]

Thanks for the replies, my mistake, they are 2k monitors, the resolution in Display Settings matches the product, it's the refresh rate which doesn't.

I have tried 1 monitor on its own and 1 in DP with the other usb c to HDMI, still on 60hz is available.

I'm thinking to just leave it unless it's an easy fix, I do CAD work mostly, the extra screen space is a massive benefit, the resolution would have just been a nice bonus.

[zedx19]

xeny said:

Still not enough - see https://ark.intel.com/content/www/us/en/ark/produc... the maximum supported refresh rate for the integrated graphics is 60Hz at 4K.

Annoyingly the discrete GPU doesn't support external displays at all. - https://www.dell.com/support/manuals/en-ca/xps-15-...

Thank you, case closed, I'll stick with the additional screen space at 60hz, going from 2 x 24" + laptop to 2 x 27" + laptop seems to have been a bigger jump than expected. I've started using Fancyzones to make full use of the screen space.