如何在 Debian 10 Buster XFCE 中启用第三个屏幕

如何解决如何在 Debian 10 Buster XFCE 中启用第三个屏幕

我的台式计算机上有 3 个与我在家使用的品牌和型号相同的屏幕。以前，我可以在 Windows 10 上以健康的方式使用这 3 个屏幕。可以用鼠标在屏幕之间切换；我可以通过在屏幕之间拖动应用程序、程序、文件夹和文件来移动它们。我什至可以在与远程桌面连接的室外环境中使用 3 个屏幕。

我最近开始使用 Debian 10，我很喜欢它。我尝试研究如何在 Debian 10 上使用 3 个屏幕。我尝试了许多外国文章中的不同内容。 （即使我必须格式化 3156243165 次 :D）

结果，我激活了第三个屏幕，但我无法用鼠标切换，它看起来像一台独立的计算机。当我截屏时，它只截取了2个屏幕。

我的电脑具有多显示器 iGPU 功能，其设置在 BIOS 中配置。 NVIDIA 驱动程序和 xorg.conf 文件已配置。

我指定了我的显示器布局以获取信息。

1. 监控 NVIDIA VGA-0
2. 监控 NVIDIA HDMI-0
3. 监控英特尔 VGA 吗？

 __nvidia__ __nvidia__ ___intel___
|          |          |          |
|  VGA-0   |  HDMI-0  |   VGA-?  |
|__________|__________|__________| 

sudo xrandr 输出；

Screen 0: minimum 8 x 8,current 3840 x 1080,maximum 16384 x 16384
VGA-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 509mm x 286mm
   1920x1080     60.00*+
   1680x1050     59.95 
   1600x900      60.00 
   1440x900      59.89 
   1280x1024     60.02 
   1280x800      59.81 
   1280x720      60.00 
   1024x768      60.00 
   800x600       60.32 
   640x480       59.94 
DVI-D-0 disconnected (normal left inverted right x axis y axis)
HDMI-0 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 509mm x 286mm
   1920x1080     60.00*+  59.94    50.00    50.00 
   1680x1050     59.95 
   1600x900      60.00 
   1440x900      59.89 
   1280x1024     60.02 
   1280x800      59.81 
   1280x720      60.00    59.94    50.00 
   1024x768      60.00 
   800x600       60.32 
   720x576       50.00 
   720x480       59.94 
   640x480       59.94    59.93 
DVI-D-1 disconnected (normal left inverted right x axis y axis)

在此链接 https://gist.github.com/lucasbrynte/9b2966460832522eb6c35b44ae768667 中，我根据找到的设置编辑了我的 xorg.con。

xorg.conf 的编辑状态；

# nvidia-xconfig:  version 418.56

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0"
    Screen      1  "Screen1"
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
EndSection

Section "Files"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
    # generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "Unknown"
    HorizSync       28.0 - 33.0
    VertRefresh     43.0 - 72.0
    Option         "DPMS"
EndSection

Section "Monitor"
    Identifier     "Monitor1"
    VendorName     "Unknown"
    ModelName      "Unknown"
    HorizSync       28.0 - 33.0
    VertRefresh     43.0 - 72.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
EndSection

Section "Device"
    Identifier     "Device1"
    Driver         "intel"
    BusID          "PCI:0:2:0"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Section "Screen"
    Identifier     "Screen1"
    Device         "Device1"
    Monitor        "Monitor1"
    DefaultDepth    24
    SubSection     "Display"
        Depth       24
    EndSubection
EndSection