LG 24HR513C Owner's Manual page 41

Support Mode (Preset Mode - PC)
DisplayPort/ DVI-D/ HDMI ([Screen Rotation]:[Landscape])
Resolution
640 x 480
800 x 600
1024 x 768
1152 x 864
1280 x 720
1280 x 800
1280 x 1024
1440 x 900
1600 x 1200
1680 x 1050
1920 x 1080
1920 x 1200
Horizontal Frequency (kHz)
31.469
37.879
48.363
54.347
45.00
49.702
63.981
55.935
74.7
65.290
67.5
74.04
Vertical Frequency (Hz) Polarity (H/V)
59.94
60.317
60
60.05
60.00
59.81
60.02
59.887
60
59.954
60
59.95
Remarks
-/-
+/+
-/-
+/+
+/+
-/+
+/+
-/+
-/+
-/+
+/+
+/- Recommended timing
41