Custom Resolution Utility (CRU)

[dinsum]

Hi,

Im using this program to try and get 120hz refresh rate with my LG 49UB8500 TV @ 1080P resolution, I have a r9 290x videocard with a $2 HDMI cable 6 feet long

75hz works good, i tried 92hz and 100hz, both didn't work, tv said invalid format, I tried setting it to 120hz and it works but only uses a 1/4 of the screen, i attached a picture to show what I mean, you can see there is weird artifacting on some parts of the screen as well

I unlocked my drivers for 300mhz pixel clock

Even though it only fills the top left of the screen it is actually displaying at 120hz, it feels very snappy and games run at 120fps with vsync on

I also attached a picture showing the settings I choose when I made the custom resolution, i basically left everything default but just changed the refresh rate, is there more that I need to do or things I can try to get it to fill the screen properly? Could it possibly be my cheap HDMI cable causing the problem?

Thanks for any suggestions!