Xorgデュアルヘッドはキーボードとマウスの入力のみを特定の画面にマッピングします。

以下は、デュアルヘッドモニタ設定用のxorg.confファイルです。他の画面はビデオ再生に使用されるため、キーボードとマウスを特定の画面にマッピングするだけです。提供された設定では、明示的な指示にもかかわらず、マウスが正しくマッピングされます。キーボードも正しくマッピングされました。ただし、しばらくすると別の画面に切り替わります。キーボードとマウスの入力を特定の画面に明示的にマッピングする方法はありますか？

Section "ServerLayout"
    Identifier     "Layout1"
    Screen         0 "Screen0" 0 0
    Screen         1 "Screen1" 0 0
    InputDevice    "Mouse0" "CorePointer"
    InputDevice    "Keyboard0" "CoreKeyboard"
    Option "StandbyTime" "0"
    Option "SuspendTime" "0"
    Option "OffTime"     "0"
    Option "BlankTime"   "0"
EndSection

Section "Files"
    ModulePath   "/usr/lib/xorg/modules"
    FontPath     "/usr/share/fonts/misc/"
    FontPath     "/usr/share/fonts/TTF/"
    FontPath     "/usr/share/fonts/OTF/"
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   "Monitor Vendor"
    ModelName    "Touchscreen"
    Option       "DPMS"  "false"
EndSection

Section "Monitor"
    Identifier   "Monitor1"
    VendorName   "Monitor Vendor"
    ModelName    "No touchscreen"
    Option       "DPMS"  "false"
EndSection

Section "Device"
    Identifier  "Card1"
    Driver      "modesetting"
    Option      "ZaphodHeads" "VGA-1"
    BusID       "PCI:0:2:0"
    Screen      1
EndSection

Section "Device"
    Identifier  "Card0"
    Driver      "modesetting"
    Option      "ZaphodHeads" "HDMI-2"
    BusID       "PCI:0:2:0"
    Screen      0
EndSection

Section "Screen"
    Identifier "Screen1"
    Device     "Card1"
    Monitor    "Monitor1"
    SubSection "Display"
            Viewport   0 0
            Depth     1
    EndSubSection
    SubSection "Display"
            Viewport   0 0
            Depth     4
    EndSubSection
    SubSection "Display"
            Viewport   0 0
            Depth     8
    EndSubSection
    SubSection "Display"
            Viewport   0 0
            Depth     15
    EndSubSection
    SubSection "Display"
            Viewport   0 0
            Depth     16
    EndSubSection
    SubSection "Display"
            Viewport   0 0
            Depth     24
    EndSubSection
EndSection

Section "Screen"
    Identifier "Screen0"
    Device     "Card0"
    Monitor    "Monitor0"
    SubSection "Display"
            Viewport   0 0
            Depth     1
    EndSubSection
    SubSection "Display"
            Viewport   0 0
            Depth     4
    EndSubSection
    SubSection "Display"
            Viewport   0 0
            Depth     8
    EndSubSection
    SubSection "Display"
            Viewport   0 0
            Depth     15
    EndSubSection
    SubSection "Display"
            Viewport   0 0
            Depth     16
    EndSubSection
    SubSection "Display"
            Viewport   0 0
            Depth     24
    EndSubSection
EndSection