Xorg Dummy Config for Headless AnyDesk Access (Linux)

xorg.conf

Section "Device"
    Identifier "Card0"
    Option "NoDDC" "true"
    Option "IgnoreEDID" "true"
    Driver "dummy"
    VideoRam 512000
EndSection

Section "Monitor"
    Identifier "Monitor0"
    HorizSync 28.0-80.0
    VertRefresh 48.0-75.0
    # 1024x768 @ 60.00 Hz (GTF) hsync: 47.70 kHz; pclk: 64.11 MHz
    # Modeline "1024x768_60.00" 64.11 1024 1080 1184 1344 768 769 772 795 -HSync +Vsync
    # 1280x720 @ 60.00 Hz (GTF) hsync: 44.76 kHz; pclk: 74.48 MHz
    # Modeline "1280x720_60.00" 74.48 1280 1336 1472 1664 720 721 724 746 -HSync +Vsync
    # 1368x768 @ 60.00 Hz (GTF) hsync: 47.70 kHz; pclk: 85.86 MHz
    # Modeline "1368x768_60.00" 85.86 1368 1440 1584 1800 768 769 772 795 -HSync +Vsync
    # 1600x900 @ 60.00 Hz (GTF) hsync: 55.92 kHz; pclk: 119.00 MHz
    # Modeline "1600x900_60.00" 119.00 1600 1696 1864 2128 V900 901 904 932 -HSync +Vsync
    # 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 "Screen"
    Identifier "Screen0"
    Device "Card0"
    Monitor "Monitor0"
    DefaultDepth 24
    SubSection "Display"
        Depth 24
        Modes "1920x1080"
    EndSubSection
EndSection

~README.md

Usage

Prerequisites

Install the Xorg dummy driver for your distribution:

# Debian/Ubuntu
sudo apt update && sudo apt install xserver-xorg-video-dummy

# Arch/Manjaro
sudo pacman -S xf86-video-dummy

# RHEL/Fedora
sudo dnf install xorg-x11-drv-dummy

Configuration

Works for me on Linux Mint.

1. Backup your current config (it will be replaced):

sudo cp /etc/X11/xorg.conf /etc/X11/xorg.conf.back

2. Overwrite xorg.conf with this Gist.
3. Restart your display manager to apply the new config (or reboot):

sudo systemctl restart display-manager