Question 144Hz Monitor Stuck at 120Hz

flossbandit

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Jan 11, 2012
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The monitor is a 32:9 Samsung CHG90. I’ve installed the DisplayPort driver and Windows still only gives the option for 59,60,100 & 120Hz. 144Hz is missing. I’ve tried to create a custom resolution in Nvidia Control Panel too, but every time it says ‘Test Successful’ but doesn’t really appear to save the setting. My GPU is an EVGA 780 TI SC. I’m connecting through the DisplayPort on both devices and using the DisplayPort cable that came in the box with the monitor. I’ve updated the monitor’s DP Driver via Samsung’s website. Windows is up to date (Win 10 x64 Ver 1903 OS Build 18362.239) Nvidia drivers are up to date: 431.36. The monitor is running the latest firmware, Version 1019.0. Inside the monitor’s menu, it says the refresh rate is set to 144Hz. Response time: Standard. Display Port Version is set to 1.2 on the monitor. By default it was set to 1.2+ but every time I restarted my computer it would fail to find a video signal. I can vouch that 1.2+ only shows 120Hz too though… And 1.1 only shows up to 100Hz.
Any help would be appreciated.
 

flossbandit

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Jan 11, 2012
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Unfortunately I'm still stuck at 120Hz. As far as I can see there are no HDR related settings in the monitor. I've also looked over the How To guide but don't see anything I haven't tried. I even bought a new DisplayPort cable just to see, but that didn't work either.
 

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