The SYNC LED lights up ORANGE when valid input sync is detected.
The SEL LED lights up GREEN when the input is selected.
Blinking YELLOW: Sync/signal is present, but not conform with input port standard.
Note: Non-conformity issues can be caused by older or low quality cables unable to handle the requested resolution, or connected signal converters manipulating the signal out of the supported video standards.
Note: For specifications about the supported inputs for DisplayPort 1.2 see chapter “Specifications”.