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Manjaro. Gnome. Nvidia.

I have two GPUs (ASUS 1070 both).

NVIDIA X Server Settings

Both GPUs and monitors are detected, but I cannot add the second monitor (the smallest, orange on the screenshot) to the X Screen 0. I can only create new X screen 1, but even if I select X Screen 1, I cannot save settings. (second screenshot)

image 2

The current settings cannot be completely applied due to one or more of the following reasons:

  • The location of an X screen has changed
  • The location type of an X screen has changed
  • The color depth of an X screen has changed
  • An X screen has been added or removed.
  • Xinerama is being enabled/disabled.

For all the requested settings to take effect, you must save the configuration to the X config file and restart the X server.

Apply What Is Possible Cancel

I was trying a lot of things, but nothing seems to help. So, I even have a conclusion that it is not possible. I am not experienced in Xorg, etc. at all, so I think there should be some solution.

My xorg.conf

# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 410.57

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0"
    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 "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    Option "NoLogo" "1"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "MultiGPU" "on"
    Option         "SLI" "off"
    Option         "BaseMosaic" "on"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Section "Extensions"
    Option         "COMPOSITE" "Enable"
EndSection


Section "InputClass"
    Identifier          "Keyboard Defaults"
    MatchIsKeyboard        "yes"
    Option              "XkbOptions" "terminate:ctrl_alt_bksp"
EndSection

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