Third display not showing in System Preferences

[mjaroch]

Hello ICyrets,

Thank you for the detailed setup.
I recommend disconnecting and reconnecting the HDMI cable after the other monitors are already set up. If possible, try connecting the HDMI monitor using a DisplayPort connection instead.

Please make sure you are using the latest version of the DisplayLink Manager app.
If the issue persists, you can try running the DisplayLink End-User Cleaner Tool, then reinstall the software.
If your issue would not be solved, please contact us directly for further assistance by following these steps.