21.10 中的虚拟监视器

Question

直到 20.04，我才能够创建一个假监视器，用于通过以下方式远程访问无头机器：

$ sudo apt install gnome-session gdm3
$ sudo systemctl set-default graphical.target

$ sudo apt install  xserver-xorg-core-hwe-18.04
$ sudo apt install  xserver-xorg-video-dummy

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

Section "Device"
    Identifier  "Configured Video Device"
    Driver      "dummy"
EndSection
Section "Monitor"
    Identifier  "Configured Monitor"
    HorizSync 31.5-48.5
    VertRefresh 50-70
EndSection
Section "Screen"
    Identifier  "Default Screen"
    Monitor     "Configured Monitor"
    Device      "Configured Video Device"
    DefaultDepth 24
    SubSection "Display"
    Depth 24
    Modes "1920x1080"
    EndSubSection
EndSection

它就像一个魅力，允许我使用远程桌面应用程序进行连接。相反，对于 21.10，此过程会导致“哦，不，出了问题”死亡页面。

我应该如何更改此设置才能使虚拟监视器功能再次工作？

我知道我可以使用硬件插头，但这不是问题。

Answer 1

这对我 22.04 有效：

Section "Device"
    Identifier  "Configured Video Device"
    Driver      "dummy"
    VideoRam 256000
EndSection

Section "Monitor"
    Identifier  "Configured Monitor"
    HorizSync 5.0 - 1000.0
    VertRefresh 5.0 - 200.0
    ModeLine "1920x1080" 148.50 1920 2448 2492 2640 1080 1084 1089 1125 +Hsync +Vsync
EndSection

Section "Screen"
    Identifier  "Default Screen"
    Monitor     "Configured Monitor"
    Device      "Configured Video Device"
    DefaultDepth 24
    SubSection "Display"
    Depth 24
    Modes "1920x1080" "1280x800" "1024x768" "1920x1080" "1440x900"
    EndSubSection
EndSection

我从https://gist.github.com/divinity76/ce210b5dbcd9ea7d0585ac403caef577中提取了不同的模型行