144hz monitor predator 300 red line and black half screen

Erwinjay
Erwinjay Member Posts: 3 New User
edited June 2022 in Predator Laptops
Hi, i have a helios predator 300 laptop 144hz and an Acer monitor XV20 V which is also 144hz, i bought a 1.4 dp cable and directly connect it thru my laptop mini dp port and my monitor dp the problem is when i try to change the hz of my monitor its not working and it shows only half and flickers with red line and black half screen only, any suggestion to fix this issue? thank you. its windows 11 and rtx 2060 nvidia vid card.

(Thread was edited to add model name to the title)