Friend has GL553V and can't get 4k@60hz on his new monitor (U28E590D). Reinstalled drivers, tried 2 different HDMI 2.0, USB c to display port (guess it's not TBT 3) but nothing.. intel graphics alaways show only 30hz option. I have read somewhere that this integrated intel graphics (HD 630 in i7-7700HQ) can only show 4k@60HZ through display port.. .but laptop doesn't have display port and there is no thunderbolt 3.
What are his options?