ASUS Rog Swift pg278q cant set higher than 85 hz

[TheMrKn1Fe]

I bought pg278q in 2016 or 2015 i dont really remember everything was fine but 3 month ago my friend asked me to test his displayport if it works i tested(it didnt work) and then plug in my displayport back but since then i cant set hz higher than 85, i had gtx 780 now i am on 1080 ti and still have this problem, yestarday i bought a new displayport (v1.2) but nothing changed, i tried setting custom resolution through nvidia panel but after test it instantly goes back, also tried diferent programms maded for boosting hz, tried installing different nvidia drivers, but it still shows me only 60 and 85 hz in nvidia and windows panels

 

[Gingerbread]

Can you try uninstalling the the Nvidia driver and checking in windows panel if you can go for 144hz? (Uinstall driver and restart pc).

 

[TheMrKn1Fe]

Can you try uninstalling the the Nvidia driver and checking in windows panel if you can go for 144hz? (Uinstall driver and restart pc).

Thank you for your answer, i am currently in another country, but when i come back i will let u know if it works or not(3-5 August)