I am using Microsoft Remote Desktop to remote my Ubuntu Desktop 23.10 in my office without a monitor connecting.

you have to stop encrypt the password to prevent the system changing the remote password every reboot.

after that, add a fake dummy desktop so that we can remote into a GUI.

cd /usr/share/X11/xorg.conf.d

vi dummy.conf
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

Section "Device"
  Identifier "renderD128"
  Driver "dummy"
  VideoRam 256000

Section "Screen"
  DefaultDepth 24
  Identifier "Screen0"
  Device "renderD128"
  Monitor "Monitor0"
  SubSection "Display"
    Depth 24
    Modes "1920x1080_60.00"

not you can remote at anytime.

By bamboo

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