Why does LGHD2 show black screen even if I restart RECentral or PC?
1. Probably, your input source has content protection (HDCP). LGHD2 doesn’t support to view or record this kind of content. (Warning: Do not use HDMI splitter to capture it, because it’s illegal.)
2. Another case, LGHD2 may not support current resolution of your input source. Please modify the resolution setting from your input source to meet the LGHD2 specification.