VIEWSONIC VG2455 24" 16:9 IPS Monitor - Manual (Page 38)

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I Information
Displays the timing mode (video signal input) coming from the graphics
card in the computer, the LCD model number, the serial number, and
the ViewSonic® website URL. See your graphics card’s user guide
for instructions on changing the resolution and refresh rate (vertical
frequency).
NOTE: VESA 1024 x 768 @ 60Hz (example) means that the resolution
is 1024 x 768 and the refresh rate is 60 Hertz.
Input select
Toggles between the various input options that are available for that
particular monitor.
L Low input lag
ViewSonic offers low input lag, utilizing a monitor process reducer, which
decreases signal latency. Under the low input lag submenu, you can
select the appropriate speed for your desired use from the two options