LG 32HL512D-B 31.5" 8MP Color Diagnostic 16:9 4K HDR IPS Monitor - Manual (Page 40)

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Resolution Horizontal Frequency (kHz) Vertical Frequency (Hz) Polarity (H/V) Remarks
2560 x 1440 88.79 59.95 +/-
3200 x 1800 54.95 29.96 +/-
3200 x 1800 111.82 59.96 +/-
3840 x 2160 1) 67.5 30 +/+
3840 x 2160 1) 135 60 +/+
When [HDMI ULTRA HD Deep Color] is set to [On] /
HDMI Recommend.
3840 x 2160 2) 66.66 30 +/-
3840 x 2160 2) 133.32 60 +/- DisplayPort Recommend
*1) For HDMI, 2) For DP