LG 32UQ750 Owner's Manual page 22

Settings > General
Input Compatibility Version
Please set the Input Compatibility Version to match the version of the connected external device.
HDMI
DisplayPort
Buzzer This feature lets you set the sound generated from Buzzer when your monitor powers on to On or Off.
OSD Lock This feature disables the configuration and adjustment of menus.
Information The following display information will be shown; Total Power On Time, Resolution.
Reset to Initial Settings Do you want to reset your settings?
22
Description
2.1(PC)/2.1(AV)/1.4
If you want to use the HDR, select the Input Compatibility Version to 2.1(PC) or 2.1(AV).
1.4(DSC)/1.4/1.2
If you want to use the HDR, select the Input Compatibility Version to 1.4(DSC) or 1.4.
No Cancel the reset.
Yes
Returns to the default settings.