Quote from spacedesk Renz on 28/08/2026, 03:42

Hello everyone,

For everyone affected by the “Connected – Display Off” issue after updating your Nvidia Driver version to 616.56, please take note that the issue is caused by the Nvidia Driver itself and not by spacedesk as referenced here:
NVIDIA GeForce Forums
Nvidia 50×0 users: Don’t install the recent driver 616.56 if using Virtual Display : r/MoonlightStreaming

You may consider installing the Nvidia Driver version 610.88 as it was confirmed by some of the users that rolling back to that version resolves the issue on their end.

Thank you.