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How to use Ubuntu Desktop VNC without display attached?

Ubuntu won’t let you connect remotely without a monitor being connected.


Basically install a dummy driver:

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

Then write it in the /usr/share/X11/xorg.conf.d/xorg.conf (or possibly /etc/X11/xorg.conf) file (create one, if it does not exist):

"nano /usr/share/X11/xorg.conf.d/xorg.conf" then paste the below


Section "Device"
    Identifier  "Configured Video Device"
    Driver      "dummy"

Section "Monitor"
    Identifier  "Configured Monitor"
    HorizSync 31.5-48.5
    VertRefresh 50-70

Section "Screen"
    Identifier  "Default Screen"
    Monitor     "Configured Monitor"
    Device      "Configured Video Device"
    DefaultDepth 24
    SubSection "Display"
    Depth 24
    Modes "1024x800"

Press ctrl + x y and enter.

Reboot your machine, by typing “reboot” into your console.

To adjust the resolution, type the following:

xrandr --fb 1280x1024



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