A:AnswerFrom the LG website freesync is only available with Display Port connection. As I do not own an AMD GPU I can not test this feature of the monitor.
A:AnswerThe DisplayPort on the LG 27" Class 4K UHD IPS LED Monitor (27" Diagonal), Model # 27UD69P-W is version 1.2 and support for the DisplayPort™ 1.2 Multi-Stream Transport (MST) is a feature that was added to DisplayPort ver. 1.2 and was also was available in Ver.1.1a ...^IFV
A:AnswerHello:
These options are only available for the HDMI port. So you need to use the HDMI port with a cable compatible with HDCP 2.2, for this you need an HDMI 2.0 cable or higher and of course a GPU compatible with this output.
The CPUs compatible with HDMI 2.0 are the models GTX 900 and GTX 1000 from Nvidia and the models RX 300, RX 400 and 500, also the Fury and Vega are compatible from AMD.
