デュアルGPU xorg.confは1つのGPUでXScreenを無視し、xrandrを使用します。

デュアルGPU X11はxorgを使用してワークロードと画面を分離します。 2つのGPU 3つのスクリーン/モニター。オリジナル

GPU 0 => XScreen 0.0 =>モニタ0（左）

GPU 1 => XScreen 0.1 => モニタ 1(中央)

GPU 0 => XScreen 0.2 =>モニタ2（右）

これを設定すると、システムは2つのXScreen（各GPUごとに1つ）を認識し、サイドスクリーンを一緒にクラスタリングしてレイアウトを台無しにしました。

なぜこのようなことが起きるのかご意見をいただきありがとうございます。

Section "ServerLayout"
    Identifier     "PootSlap"
    Screen      0  "Screen0" 0 0
    Screen      1  "Screen1" RightOf "Screen0"
    Screen      2  "Screen2" RightOf "Screen1"
    InputDevice    "Mouse0" "CorePointer"
    InputDevice    "Keyboard0" "CoreKeyboard"
    Option “Xinerama” “0”
EndSection

Section "Module"
    Load  "glx"
EndSection

Section "InputDevice"
    Identifier  "Keyboard0"
    Driver      "kbd"
EndSection

Section "InputDevice"
    Identifier  "Mouse0"
    Driver      "mouse"
    Option      "Protocol" "auto"
    Option      "Device" "/dev/input/mice"
    Option      "ZAxisMapping" "4 5 6 7"
EndSection

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "ACR"
    ModelName      "Acer G246HYL"
    HorizSync       31.0 - 75.0
    VertRefresh     56.0 - 75.0
    Option         "DPMS"
EndSection

Section "Monitor"
    Identifier     "Monitor1"
    VendorName     "ACR"
    ModelName      "Acer SA270"
    HorizSync       31.0 - 84.0
    VertRefresh     48.0 - 76.0
    Option         "DPMS"
EndSection

Section "Monitor"
    Identifier     "Monitor2"
    VendorName     "ACR"
    ModelName      "Acer G247HYL"
    HorizSync       31.0 - 75.0
    VertRefresh     56.0 - 75.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier  "Card0"
    Driver      "amdgpu"
    BusID       "PCI:48:0:0"
EndSection

Section "Device"
    Identifier  "Card1"
    Driver      "nvidia"
    BusID       "PCI:16:0:0"
EndSection

Section "Device"
    Identifier  "Card2"
    Driver      "amdgpu"
    BusID       "PCI:48:0:1"
EndSection

Section "Screen"
    Identifier "Screen0"
    Device     "Card0"
    Monitor    "Monitor0"
        Option     "metamodes" "DisplayPort-0: 1920x1080_60 +0+0"
    SubSection "Display"
        Depth     24
    EndSubSection
EndSection

Section "Screen"
    Identifier "Screen1"
    Device     "Card1"
    Monitor    "Monitor1"
        Option     "metamodes" "DFP-3: 1920x1080_75 +0+0"
    SubSection "Display"
        Depth     24
    EndSubSection
EndSection

Section "Screen"
    Identifier "Screen2"
    Device     "Card2"
    Monitor    "Monitor2"
        Option     "metamodes" "HDMI-A-0: 1920x1080_60 +0+0"
    SubSection "Display"
        Depth     24
    EndSubSection
EndSection