1️⃣版本

• Ubuntu 24.04
• Todesk 4.7.2.0
• xserver-xorg-video-dummy 1:0.4.0-1build1

2️⃣安装配置虚拟显示器

• sudo apt install xserver-xorg-video-dummy
• 编辑/etc/gdm3/custom.conf，关闭Ubuntu24.04Wayland切换为X11
  • WaylandEnable=false
• /usr/share/X11/xorg.conf.d/目录下新建一个显示器配置文件99-dummy.conf

# 99-dummy.conf
Section "Device"
    Identifier  "Configured Video Device"
    Driver      "dummy"
    VideoRam 256000
EndSection

Section "Monitor"
    Identifier  "Configured Monitor"
    HorizSync 10.0-300
    VertRefresh 10.0-200
EndSection

Section "Screen"
    Identifier  "Default Screen"
    Monitor     "Configured Monitor"
    Device      "Configured Video Device"
    DefaultDepth 24
    SubSection "Display"
    Depth 24
    Modes "1920x1080"
    EndSubSection
EndSection

3️⃣重启后查看

xrandr