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The original was posted on /r/monitors by /u/mavericknathan1 on 2023-08-07 19:07:31+00:00.

I have connected the LG 27GN800 to my Laptop (ASUS TUF F15: i7 11800H, RTX 3060), and the monitor screen flickers like crazy at 144Hz (regardless of 1080p or 1440p). The monitor has one DisplayPort (which I can’t use because my laptop doesn’t have a display out) and two HDMI 2.0 ports. Now the theoretical spec for HDMI 2.0 is 1440p 144Hz as far as I am aware. It could be a manufacturer-side problem but I’d really love it if 1440p 144Hz could be run stably.

Currently, I am running at 1440p 120Hz with GSync/FreeSync off. What could be the reasons/potential solutions for this?