“How would this TV work as a primary computer monitor? (Specifically, I would like to use the 4K in regular desktop mode and will most likely downscale to QHD (2560x1440) for gaming with an nVidia 2070 Super.)”
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You’ll have to set gaming resolution and g-sync manually through Nvidia control panel. And use windows setting to set desktop resolution to 4K, but windows usually recognizes the native res and sets it. I have this set and it has been a dream for gaming on both PC/Xbox one X.
Sorry, there was a problem. Please try again later.Two of the four HDMI ports for the LG NanoCell 85 Series 2020 49 inch Class 4K Smart UHD NanoCell TV w/ AI ThinQ® (48.5'' Diag), Model # 49NANO85UNA are HDMI 2.1 ports that support 4K @ 120Hz when HDMI Ultra HD Deep Color is set to On. The ports are labeled 4K @ 120Hz. All common resolutions are supported, including proper chroma 4:4:4 at 60Hz at both 1080p and 4k resolutions, which is important for reading text while using the TV as a PC monitor. For this to work, the icon for the HDMI input must be set to PC. The TV can properly display a 1440p @ 120Hz signal sent from a physical input (HDMI etc.,). If a PC is connected, the TV should be set in Game Mode so it does not flicker at 120Hz...^IFV
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