How to get 120hz on 'PC' resolution settings

[Michael Gill (Student)]

So i've just bought an lg c3 oled and I'm having a mare setting resolution and refresh rate on win 10.If I set my desktop res via nvidia control centre to 3840x2160 under the PC heading I can set the refresh rate to 120hz however I get black bars at the sides of the screen.If I set the same resolution under the UHD, HD, SD heading the bars disappear however the refresh rate is capped at 60Hz. How can I get the res I want at full refresh?ThankS

Continue reading...