Hi J.1,
GoToMyPC screen blanking supports the follow connection types only; DVI, VGA, HDMI, and DisplayPort (only for Windows 10 (build 2004) and above).
- Docking stations, KVM switches, USB display adapter, and connectors may or may not work.
- There is a known compatibility issue with Intel HD Graphics cards and the display port adapter. If you are using this model, we recommend that you use a different display adapter port on your computer's video card.
- If you are still experiencing trouble with screen blanking, you may need to check for any installed third-party drivers. Some third-party drivers (GoTo Mirror Driver, Splashtop Mirror Driver, DameWare Development Mirror Driver, etc.) may prevent screen blanking capabilities, and you may need to uninstall these drivers for screen blanking to work properly.