Display Connected but black Screen and Display off  

I am having the same issue.

Hi,

I having some problem like this, but i cant find the other monitor, my pc just don't find the second monitor, but my smartphone have black screen with "Connected - Display Off". How can i solve this?

Smartphone: Samsung Galaxy S7 Edge (Android 8.0)

PC: Dell G3 3590 (i5 9300H + GTX 1650) with windows 10 with update 2004

Hi @stoubar,

To further analyze the problem could you please download the 2020_spacedeskDiagnosticTool.zip file here then extract it.

Inside you will find spacedeskDiagnosticTool.cmd, just right-click it then run as administrator.
This script will start a debug view app to capture spacedesk debug traces.
On step 5 it will prompt you to reproduce the issue(just connect the viewer app with black screen/display off status), make sure to do this before pressing any key to continue.
After the script is done, a folder will be created on the same folder as the script file which contains various log files that we need for analysis.
Please right-click it -> Send to -> Compressed (zipped) folder, then attach the *.zip file on your next reply.
Looking forward to your feedback.

Hello, i tried with debug, but when running the debug software the spacedesk Server justo close and dont open again. Another question, how can i attach the file?

Hi @stoubar,
The script includes restarting the spacedeskService that's why the spacedesk SERVER window will suddenly close, but you should be able to open it again upon Step 5, when the script prompt you to reproduce the issue.
Attach option should be visible below the text editor after your second post.

hey, I have the same problem 'connected-display off'

Hi @dtmk,
Did you check the display settings window on your primary machine if the spacedesk display is detached?
What is your spacedesk Viewer type? Android/iOS/Windows/HTML5?
For further analysis, could you please run dxdiag.exe on your primary machine, click "Save All Information", then attach the output file on your next reply.
PS: Attach option should be visible on your side after your second post.

Hi, I seem to have the same issue unfortunately...
I have the Server running on my Laptop (Win 10 64-bit build 19042) and am trying to connect to my iPad Pro (3rd Gen, running iOS 13.5.1). I have tried connecting through the app as well as the HTML Viewer with no success. While the iPad says "Connected - Display OFF", the server shows no connection being made. 

Hi @austrianaviator,

Is your auto-reconnect enabled on your iOS Viewer app?
Did you notice any error notification on your primary machine upon connection attempt?
For further analysis, could you please run dxdiag.exe on your primary machine, click "Save All Information", then attach the output file on your next reply.
PS: Attach option should be visible on your side after your second post.

@spacedesklea
Thank you for the speedy reply. I have tried to connect with the auto-reconnect both enabled and disabled. Same result. There is also no apparent error message. 

Hi @austrianaviator,
Thanks for sending your dxdiag info.
It seems that you have splashtop installed on your primary machine.
You have to remove/uninstall splashtop then reboot before connecting spacedesk viewer.
For more info, please check Incompatible display hook driver chapter in our user manual https://spacedesk.net/user-manual/.

Hi, I also have the same problem: it connects, the connection appears on the server, but the IOS screen (I also tested it on Android) remains black and the message "CONNECTED - DISPLAY OFF" appears.

He won't let me attach the diagnostic file

- Primary machine operating system: Windows 10
- Secondary machine operating system: iOS
- Primary machines's Graphics adapter: AMD
- Network connection type: Wifi

Hi @blainethemonkey,
Attach option will be visible on your side after your second post.

Did you check on display settings window of your primary machine if there's a detached second display?
Did you also check if spacedesk SERVER window shows any indication that there's a connected viewer (e.g. connections count, on Network connections (remote) tab?