Viever does not work on my Laptop properly

#1 · 28/10/2025, 21:52

Hi I have an issue. I’m trying to use my laptop as a secondary screen to my PC. The Viever sees an active client. The client recognizes and connect Viever. My PC sees secondary screen, I can set it to widen, show the same image on both. But Viewer is BLACK. I can move my mouse from Client to Viever, PC knows that there is a second screen, but the Viever is just all black.

What is funny is that app on Android Tablet works flawlessly.
What is more funny is that the HTML-Browser viever connects and works- both ways. PC as Client, Laptop as Viewer and vice versa. But its laggy, so I’m hoping to run the desktop app.
I don’t know what the problem might be.

#2 · 29/10/2025, 01:56

Hi @mateusz,

For further analysis of the issue, please send us the logs of your Primary PC by opening the spacedesk Driver console as administrator and clicking on Diagnostics then follow the steps below:

1. Download the DebugView.
2. Check the Diagnostic Collection box.
3. Reproduce the issue e.g. by connecting the spacedesk Viewer app.
4. Uncheck the Diagnostic Collection box.
5. Click “Save All Information” button (this might take a while to finish).
6. Compress/Zip the folder which contains the logs, then attach to your next reply to this post. If the folder exceeds 512kb, you may upload it to Dropbox or Google Drive then include the download link on your next reply.

Thank you.

#3 · 29/10/2025, 03:27

Hi @mateusz,

Also, which Windows Viewer did you try, the Windows Store Viewer or the Windows 7 Viewer available for download in the spacedesk website’s downloads page? Whichever you have tried, please try the other viewer also to see if it would work on your end. Thanks!

#4 · 29/10/2025, 03:32

Ok, so just quick update to this:

Quote from spacedesk Renz on 29/10/2025, 03:27

Hi @mateusz,

Also, which Windows Viewer did you try, the Windows Store Viewer or the Windows 7 Viewer available for download in the spacedesk website’s downloads page? Whichever you have tried, please try the other viewer also to see if it would work on your end. Thanks!

On laptop I used Windows 10/11 version (Microsoft Store) – that one does not work properly.
I’ve tried the Windows 7 version, but it was very unstable, and poor quality.

Will post later the diagnostic results

#5 · 29/10/2025, 04:52

Hi @mateusz,

On the spacedesk Viewer settings, go to Compression then change Encoding Type to “Software Encoding JPEG (force always)” to see if this fixes the black screen issue. Thank you.

#6 · 30/10/2025, 10:22

Quote from spacedesk Renz on 29/10/2025, 04:52

Hi @mateusz,

On the spacedesk Viewer settings, go to Compression then change Encoding Type to “Software Encoding JPEG (force always)” to see if this fixes the black screen issue. Thank you.

That was the first thing I’ve tried, before creating this thread 🙂 Didn’t help :/ I’ll provide the logs soon

#7 · 30/10/2025, 10:37

Here are the logs

Uploaded files:

You need to login to have access to uploads.

#8 · 30/10/2025, 10:55

Hi @mateusz,

Thank you for sending your logs. To further analyze your issue, please send us the following file:
– run dxdiag.exe on your PC where the spacedesk Viewer is installed, click “Save all information” and send us the output file.

Also, we saw that you set the Quality slider to 100. Can you also try lowering it to check if it would solve the issue? Thank you.

#9 · 30/10/2025, 11:35

Hi!

I’ve tried different quality options before, still black screen.

Here’s the dxdiag output file.

Uploaded files:

You need to login to have access to uploads.