Not really sure if this should be classed as a bug or feature request, but I have realised when I turn my phone off which is mirroring as a second display, and then turn it back on it still works, but if it’s been off for around 10 minutes it will just show a black screen or won’t update from the last shown screen. are there any workarounds to this?
We can see the same behavior only with USB cable connection.
If it’s via Wi-Fi, it should reconnect properly upon power resume on your Android device.
Also, is your spacedesk viewer app updated? If not, please make sure to update it to v0.91.10 in the Playstore as well as your spacedesk Driver to v1075