Based on the debugview log, spacedesk detected an incompatible display hook driver on your primary machine (e.g. splashtop/duet display/fresco).
If you have any of these software installed on your primary machine, please uninstall it then reboot before connecting a spacedesk viewer.
The incompatible display hook driver detected was the cause of your display connection issue.
To verify if these drivers are not present on your machine, could you please follow the steps below:
– run command prompt as Administrator
– type these commands:
sc query lci_proxykmd
sc query lci_proxywddm
sc query FLxHCIv
sc query ddkmd
sc query ddmgr
– if one of these command returns a Running or Stopped status
– just type sc delete [service name]
– reboot your primary machine