since couple of days I am trying to set VNC Connection with my "server" Ubuntu desktop 20.04. I want to use it as remote workstation and I want to use gnome3 environment, VNC Connect or NoMachine (for better management). Everything works well as long as monitor is attached. As soon as I remove monitor - connection breaks. Ok, that's how it works. I have created dummy screen...

sudo apt-get install xserver-xorg-video-dummy

With config based on this post:

Add Fake Display when No Monitor is Plugged In

I can access server, but it stuck on login screen with password prompt. When I put password, nothing happen. Still login screen with password prompt.

If anybody have any idea - please, help.


  • I'd buy Dummy VGA Plug/Adaptor only cost me $1.99 in my country, no hassle with xorg setting.
    – Liso
    May 21, 2020 at 6:11
  • Yup, I didn't realize that they exist. For test purpose I will do it myself tomorrow (have a lot of electronic trash). Otherwise I would need to wait for package for next couple of days...
    – sawax
    May 21, 2020 at 6:53

1 Answer 1


Dummy VGA to HDMI solved the problem.

Description here:


This one I have made

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.