Rustdesk headless-installation Linux

First install Rustdesk from repo.zyzonix.net. Then configure Rustdesk (if using different relay server than the default) via the default GPU.

Install xorg-xserver-video-dummy:

sudo apt install xserver-xorg-video-dummy

Apply the following configuration for full-HD: Therefore edit:

sudo nano /usr/share/X11/xorg.conf.d/xorg.conf

And paste this content:

Section "Monitor"
  Identifier "Monitor0"
  HorizSync 28.0-80.0
  VertRefresh 48.0-75.0
  # https://arachnoid.com/modelines/
  # 1920x1080 @ 60.00 Hz (GTF) hsync: 67.08 kHz; pclk: 172.80 MHz
  Modeline "1920x1080_60.00" 172.80 1920 2040 2248 2576 1080 1081 1084 1118 -HSync +Vsync
EndSection
Section "Device"
  Identifier "Card0"
  Driver "dummy"
  VideoRam 256000
EndSection
Section "Screen"
  DefaultDepth 24
  Identifier "Screen0"
  Device "Card0"
  Monitor "Monitor0"
  SubSection "Display"
    Depth 24
    Modes "1920x1080_60.00"
  EndSubSection
EndSection

Finally restart the VM.

Tested on Proxmox VM Partially sourced from: techoverflow.net - xserver-xorg-video-dummy-driver