LG 27BL450Y Owner's Manual page 26

factory Support Mode (Preset Mode, PC)
HDMI/DP(DisplayPort)
Preset Mode
640 x 480
800 x 600
1024 x 768
1280 x 720
1280 x 800
1280 x 1024
1680 x 1050
1920 x 1080
1920 x 1080
26
Horizontal frequency (kHz)
31.469
37.879
48.363
45
49.702
63.981
65.29
67.5
83.894
Vertical frequency (Hz) Polarity (H/V)
59.94
60.317
60
60
59.81
60.023
59.954
60
74.973
Remarks
-/-
+/+
-/-
+/+
-/+
+/+
-/+
+/+ recommend Mode
+/- (for HDMI only)